The television show Seinfeld was known for featuring many characters, each with their own special quirks.

Secondary characters

Character frequency

Characters appearing in 5 or more episodes

• Newman (played by Wayne Knight): Jerry and Kramer's vengeful and spasmodic neighbor, this character only appeared from 1992 onwards. Originally conceived to be "the son of the landlord [who] 'tells' on everyone", Newman evolved as the series progressed into a scheming mailman who was friends with Kramer but nursed a grudge against Jerry. During Season 2 only his voice was heard. An example of this is when he annoys Kramer by claiming that he's planning to commit suicide. Originally, Larry David did some of the voice work for Newman before the character was fully developed. In subsequent reworkings of the early episodes his voice was re-dubbed with Wayne Knight's. While Newman was portrayed as Jerry's arch-enemy he remained close friends with Kramer. Jerry has described Newman as "pure evil" and always greets him with "Hello...Newman!" in a sarcastic, disgusted tone (even Jerry's mother greets Newman in the same manner). Newman is also known to go into long, frustrated diatribes about his duties delivering the mail that end only when someone snaps him out of it.
• Frank Costanza (played by Jerry Stiller and, in only one episode, John Randolph — his scenes were re-shot) and Estelle Costanza (played by Estelle Harris): doting parents of George; they live in Queens. He treats his grown son, George, as though he were a rebellious teen, sometimes grounding him and slapping him in the head. He speaks fluent Korean and had an affair with a Korean woman while in the US Army in Korea. He has "man-breasts". He also suffers from a foot odor problem. Frank dislikes Elaine but likes Kramer. Frank also wears his sneakers in the pool, according to George.
• Susan Ross (played by Heidi Swedberg): ex-fiancée of George, dies from toxic wedding invitation envelope adhesive. She was a former executive at NBC when Jerry and George were pitching Jerry. After her death, George is roped into being a trustee for her memorial charity foundation. Susan hates Kramer in 4 episodes: In "The Pitch", he drinks some bad milk and throws up on her; in "The Bubble Boy", Kramer burns down her father's cabin; in "The Smelly Car" when Susan becomes a lesbian, Kramer steals her girlfriend; and in "The Invitations" Kramer forgets her name (he calls her "Lily"). She refuses to let Kramer be an usher at her and George's wedding, because "he'd probably fall and ruin the whole thing."

• Morty Seinfeld (played by Barney Martin and, for only one episode, Phil Bruns): Jerry's dad. Retired and lives in a Florida condo. He sold raincoats with Harry Fleming for 35 years. He never seems to think that Jerry's career is going anywhere (as well as the rest of the family) and continually tries to assist him financially. His legacy is inventing the "beltless trenchcoat". He hates Velcro--he "can't stand the tearing sound". In several episodes, he sports strange, large eyeglasses. He was also impeached as condo president when the other board members accuse him of stealing funds to pay for a new Cadillac -- even though Jerry actually bought the car for him. The other residents don't think Jerry has that kind of money either. Morty also adores Jerry to the point of wearing a "#1 Dad" shirt Jerry got him for days on end.
• Helen Seinfeld (played by Liz Sheridan): Jerry's mom. She adores Jerry and often asks rhetorically, "How could anyone not like him?" She keeps her and Morty's condo at an unbearable heat level.
• J. Peterman (played by John O'Hurley, To Tell the Truth): based on a real person; the eccentric and loquacious boss of Elaine Benes. He has a long and interesting history that includes opium addiction. When Peterman decides to write an autobiography, Kramer tries to sell his stories to him. Later on, Kramer claims himself to be "the real Peterman", and starts a reality bus tour, a parody of Kenny Kramer's "Kramer's Reality Tour". He often forces Elaine to do things by threatening to fire her if she doesn't, such as going out with a deaf co-worker, seeing (and liking) The English Patient, and stop carrying Tic-Tacs (he couldn't stand the rattling sound, unaware Elaine was not the primary source.)
• George Steinbrenner (played by Lee Bear and voiced by Larry David): George Costanza's eccentric boss while working for the Yankees; his face is never shown. The real George Steinbrenner did appear, face and all, as himself in the 1996 episode "The Invitations", but was cut out of the episode even though commercials ran promoting his appearance. Whenever George entered the TV Steinbrenner's office, Steinbrenner would inevitably go on some long, off-topic rant to the point George would lose interest and simply walk out--usually with Steinbrenner still rambling on as if George were still there.
• Uncle Leo (played by Len Lesser): Jerry's unavoidable and annoying uncle who always greets Jerry with a hearty "Jerry, Hello!" His son Jeffrey, of whom Leo is very proud, works for the Parks Department. Leo incessantly brags about Jeffrey to Jerry and whomever would stand in one place long enough to listen. Leo also was an avid shoplifter who defended his actions by feigning forgetfulness due to his advanced age. He has a criminal record, due to a crime of passion.
• David Puddy (played by Patrick Warburton): on-again, off-again, sometimes "religious", boyfriend of Elaine Benes who dislikes anyone using the term 'grease monkey' when referring to an auto mechanic. He wore an 8-ball jacket and enjoyed giving high fives while working as a salesman in a Saab dealership, though his true trade is an auto mechanic. Also a hardcore New Jersey Devils fan with a known affinity for Arby's . Known for his squinting, staring, generally laid back and passive attitude with a deadpan delivery (except with bursts of adrenaline such as during the hockey playoffs). His most common line is "Yeah, that's right".

• Mr. Wilhelm (played by Richard Herd): Traveling secretary of the New York Yankees and George's boss. Usually pleasant but often absent-minded, he often misjudges George, being overly critical or overly trusting by turns. At one point, he is brainwashed and drafted by the Sunshine Carpet Cleaners, a religious cult operating as a carpet-cleaning service. His new name is Tanya, a nod to the Patty Hearst kidnapping case from the 1970s. In the eighth season, when George attempts to get himself fired from the Yankees to take a better job with the New York Mets, Wilhelm claims credit for George's intentional foul-ups to get fired and take the job himself.

• Mr. Lippman (played by Harris Shore in "The Library", then by Richard Fancy): Elaine Benes' boss at Pendant Publishing. Briefly hired and fired George over inappropriate relations in his office with the cleaning woman. He is a fan of cigar store Indians and plans to publish Kramer's coffee-table book about coffee tables. He blew a big deal with a Japanese firm due to his refusal to shake hands with the head Japanese executive because he (Lippman) had sneezed into his own hands. The perceived insult led to the demise of Pendant Publishing. Later, Lippman finds work in publishing at another company, Pundit Publishing which picks up J. Peterman's autobiography. Soon after, Lippman opens up a muffin shop called Top of the Muffin to You! stealing an idea from Elaine to sell only the tops of muffins. The store failed miserably.

• Justin Pitt (played by Ian Abercrombie): A sixty-something aristocrat who hired Elaine to tend to his personal needs, such as buying socks and calling into radio shows to win the right to assist the giant Woody Woodpecker balloon during the Macy's Thanksgiving Day Parade. Elaine lost her job with Mr. Pitt when he and his other household employees suspected her of planning his death in order to secure an unusual employer-to-employee inheritance.

• Mickey Abbott (played by Danny Woodburn) is a good friend of Cosmo Kramer who at times works with him. Kramer and Mickey, a dwarf, have worked as Santa Claus and his helper elf, stand-ins on a soap opera (playing a father and son), and as "patients" portraying symptoms at a medical school. While working as a stand-in for a rapidly growing child actor, Mickey began wearing lifts, at Kramer's insistence, so that he could keep up with the boy. By breaking this taboo, he became a pariah in the close-knit world of little people performers. Mickey is quick to anger and sometimes becomes physically violent. In the episode "The Yada Yada", Mickey says he is married for the fourth time. In the "The Race", we learn Mickey has two children in college. Appearances: "The Stand In", "The Race", "The Wait Out", "The Yada Yada", "The Burning", and "The Finale"
• Russell Dalrymple, played by Bob Balaban (Gosford Park): NBC president; interviews Jerry and George for their pilot. He developed a significant crush on Elaine, which prompted him to join Greenpeace in an attempt to impress her. Russell met his death at the hands of whalers while trying to help save the whales. The character of Russell (although not his fate) is based on real-life NBC president Warren Littlefield, whom Balaban portrays in The Late Shift. Dalrymple appears in "The Pitch", "The Ticket", "The Shoes", "The Pilot, Part 1" and "Part 2".
• Dugan (played by Joe Urla): played a minor role as a coworker of Elaine's. Insists that you shouldn't make fun of pigs.
• Kenny Bania (played by Steve Hytner): an unfunny 'hack' comedian who has routines on chocolate drink mixes such as Bosco Chocolate Syrup and Ovaltine. Jerry contributed some material to Bania's Ovaltine routine. He likes to eat at Mendy's. Everything he describes is "The Best" or "Gold". George feels he is the voice of a new generation, his (George's) generation.
• Jackie Chiles (played by Phil Morris): Kramer's erstwhile lawyer, a parody of O.J. Simpson trial lawyer Johnnie Cochran. He's known for using a trio of exclamations in a single sentence (e.g. "Capricious! Egregious! Outrageous!). Kramer employed the services of Jackie in several of his frivolous lawsuits, including one against the Oh Henry! chocolate bar company. Jackie Chiles even had a life beyond the Seinfeld series: Phil Morris appeared as the character in a few television advertisements.
• Larry the Cook (played by Lawrence Mandley): the Owner/Manager/Cook at Monk's Diner. Tough and serious. Once threatened to turn George into his "personal hand puppet" and threatens bodily harm to those bringing 'outside' condiments into his diner.
• "Crazy" Joe Davola (played by Peter Crombie): Attacked Kramer, blames Jerry for misfortunes, and dated Elaine. Depressed that Elaine rejected him, he dressed up like the clown from the opera Pagliacci.

• Dr. Tim Whatley, played by Bryan Cranston ((Malcolm in the Middle): a dentist, nicknamed "Dentist to the Stars". In "The Yada Yada," he converts to Judaism, according to Jerry, just for the jokes. Jerry's anger at Whatley causes Kramer to call him an "anti-dentite". His giving Jerry a label maker he received from Elaine in the episode "The Label Maker", leads to the term regifting. In "The Jimmy", Whatley irks Jerry by having Penthouse magazines in his waiting room and by possibly 'violating' him while he was unconscious during a tooth filling.

• Mr. and Mrs. Ross (played by Warren Frost and Grace Zabriskie): Parents of George's fiancée, Susan. After Kramer burned down the family's cabin, it was revealed that Mr. Ross had had a homosexual affair with author John Cheever. "Yes, he was the most wonderful person I've ever known. And I love him deeply! In a way you could never understand." "The Cheever Letters" Mrs. Ross is a memorable alcoholic who disdains yet tolerates her husband.

• Carol (played by Lisa Mende): Mutual friend of the main characters. Carol and her husband, Michael, lived in the Hamptons, and she kept insisting that the group come out to see her baby. She had two babies, a cute one that was dropped by Kramer in "The Boyfriend", and an ugly baby that was introduced in "The Hamptons". Kramer once likened the ugly baby to Lyndon Johnson while Elaine referred to it as looking like a pekingese (dog). Carol is notable for her nasally voice and her memorable quote: "Elaine, you gotta have a baby!" in The Soul Mate. Her final appearance was in The English Patient, when she and her friends shunned Elaine after she showed her dislike for the film of the same name.
• Ruthie Cohen is the middle-aged cashier at Monk's cafe whom George accused of stealing a $20 bill from him. She can be seen in the background at the cashier at Monk's in almost every episode that has Monk's cafe in it.

Characters appearing in 2 to 4 episodes

• The Soup Nazi (played by Larry Thomas): Based on a real person (Ali "Al" Yeganeh); a chef who often denied customers his delicious soup for the slightest misbehavior with the admonition, "NO soup for you!" His real name, revealed in "The Finale", is Yev Kassem.
• Nana (played by Billye Ree Wallace) is Jerry's grandmother. When her mind starts to mix up the present and the past, she reveals that Uncle Leo owes his sister, Jerry's mom, $50 from a racetrack bet their father won when they were kids.
• Dolores (played by Susan Walters): Jerry's girlfriend; he doesn't know her name, only that it rhymes with a female body part (his best guess: "Mulva"). (The Junior Mint). Jerry reunites with her in "The Foundation".
• Donald Sanger, aka The Bubble Boy (played by Jon Hayman): Jerry agrees to visit a bubble boy, but finds he is a bratty spoiled kid; George and Donald get in a fight over a typographical error on a Trivial Pursuit card, when it says the Moops (rather than the Moors) invaded Spain. The fight resulted in the boy's bubble being popped.
• Noreen (played by Kelly Coffield, In Living Color): A friend of Elaine's who dated Dan, the high talker. Elaine continuously destroyed Noreen's life until Kramer intervened and urged her to return to the military. She attempted to commit suicide, but Frank Costanza's lawyer (played by Larry David) stopped her.

• Lloyd Braun (played first by Peter Keleghan, then by Matt McCoy): A childhood friend of George's, Estelle Costanza would badger George with "Why can't you be more like Lloyd Braun?" In "The Non-Fat Yogurt", Lloyd worked for David Dinkins until he passed along Elaine's suggestion that everyone in New York City wear name tags. Dinkins lost the race and Braun had a nervous breakdown. After spending time in a mental institution, Lloyd helped Kramer gain historical status for a movie theater, in "The Gum". In "The Serenity Now," Braun worked for a short time for George's father, Frank Costanza, allegedly selling computers (although the phone line he was "using" wasn't connected). Larry David named the Lloyd Braun character after the real-life Lloyd Braun, who was David's lawyer and manager.

• Jack Klompus (played by Sandy Baron): A slimy, weasely resident of Phase Two at the Pines, where Jerry's parents have retired. Jerry gets into a dispute with him over a "space pen". Jack also accuses Morty of stealing the condo funds to pay for the Cadillac that Jerry had bought for him. When Morty Seinfeld tells Jack that he has to put the key in the lock and jiggle the knob, Jack replies by saying, "Get the hell out of here with your knob."

• Babu Bhatt (played by Brian George): From Pakistan. Jerry seems to mess up his life at every turn, by giving bad business advice on his restaurant and by not passing on his immigration notice that is accidentally delivered to Jerry's mailbox. Babu thinks that Jerry is a "very, very bad man" (wagging his finger). The name Babu Bhatt is a Hindu name, with the first name common in the state of Gujarat in India and the last name common to Brahmin communities in the state. An immigrant from Pakistan, such as Babu Bhatt, is therefore unlikely to have this name.

• Babs Kramer (played by Sheree North): Mother of Cosmo Kramer. In the past, Babs was a matron in the women's restroom at a restaurant, but was persuaded by Kramer to resign from that job and pursue an undefined venture with him. She was featured in the 6th-season episode "The Switch" where she also revealed Kramer's first name to be Cosmo and she was discovered having a heavy-petting session with Newman. In "The Switch" Babs commented "I've been clean for two years!", implying that she once had a drug addiction problem. In "The Nose Job" it was revealed that Babs was at one point an alcoholic.

• Bob Cobb (played by Mark Metcalf, who played Neidermeyer in Animal House and the father in the video for Twisted Sister's "We're Not Gonna Take It"): A conductor who prefers to be called "Maestro" and has a villa in Tuscany. Cobb introduced Kramer and Frank Costanza to the trick of taking their pants off before sitting so the pants will "keep the crease".
• Poppie (played by Reni Santoni): Owner of an Italian restaurant who disapproves of abortion, known to not wash his hands after visiting the bathroom, believes a pizza is a pizza when you put your fists in the dough, rejects cucumbers as a pizza topping, and urinated on Jerry's brand new couch. The "Poppie couch" turns up in "The Doorman".
• Marla the Virgin, played by Jane Leeves (Frasier): Professional closet organizer whom Jerry dates. She eventually loses her virginity to John F. Kennedy, Jr.. Appears in "The Virgin", "The Contest", "The Pilot, Part 1" and "Part 2", "The Finale"

• Izzy Mandelbaum (played by Lloyd Bridges): Fellow resident of Jerry's parents in Del Boca Vista in Florida; head of family-owned Magic Pan restaurants. His favorite saying is "It's go time!" He is obsessed with his physical fitness.
• The Drake (played by Rick Overton): A mutual friend of the main characters, often referred to with the phrases "Love the Drake" or "Hate the Drake". Jerry, George, Elaine and Kramer give him and his fiance a big screen TV as a wedding gift, only to find out soon after that they have broken up and his ex-fiance, the "Drakette", gave it away to charity. In a later episode, the Drake and Drakette (who have gotten back together) are seen watching Jerry's pilot program on a small, handheld black and white television.
• Joe Mayo: Another mutual friend of the main characters, except Kramer. Hosts parties and assigns chores to the guests. Kramer later confesses he's never heard of him, and that to him, the name 'Joe Mayo' sounds made up. When Joe Mayo has a party and he asks Puddy to make sure nobody puts drinks on the stereo speakers, Puddy responds by saying, "Sure thing, Joe Mayo." Joe Mayo is also a reference to a crew member of the series.
• Alec Berg (played by Mark DeCarlo): Friend who gives ice hockey tickets to Jerry. He gets his name from one of the writers of the series. Jerry thinks the name would sound particularly appealing when spoken by John Houseman. Jerry gets snubbed by Berg because Berg felt that he was due another "thank you" or two for the tickets.

• Sue Ellen Mischke (played by Brenda Strong): Known as the "braless wonder", heiress to the Oh Henry! candy bar fortune, and nemesis of Elaine, whom she knew since they attended high school together in Maryland. She bid up the price of a set of golf clubs once owned by John F. Kennedy, which Elaine's boss J. Peterman had asked Elaine to buy at an auction, exceeding his limit. In "The Caddy", Elaine is so incensed that Sue Ellen doesn't wear a bra that she gives her a bra as a gift, which Sue Ellen then promptly wears as a top. This causes Kramer to crash his car when he and Jerry see her walking in her bra down the street. The courtroom scene the follows is a broad and obvious allusion to the O.J. Simpson trial. In "The Betrayal," Sue Ellen invited Elaine (accompanied by Jerry and George) to India for her wedding. Elaine and Sue Ellen briefly reconciled their animosity before it is revealed that Elaine once had a relationship with Sue Ellen's groom. She also appeared in "The Bottle Deposit, Part 1" and "The Abstinence."
• Ping (played by Ping Wu): Chinese food delivery boy, who sues Elaine after hitting a car while trying to avoid colliding with her as she is jaywalking. When Ping was asked how he felt after being hit by the car, he replied "Head hurt, head really hurt!" In The Tape, when George calls a Chinese company to order hair growth cream, Ping acts as the interpreter.
• Joe Temple: A family man who George watched Breakfast at Tiffany's with in the episode "The Couch". Joe disliked George after spilling grape juice on his couch. Joe also appears in "The Diplomat's Club, where George tries to watch another film with him.
• Remy Temple: Joe Temple's daughter. She is a great fan of Audrey Hepburn, and watched Breakfast at Tiffany's with her father and George in "The Couch". She appears again in "The Diplomat's Club" when George brings another Audrey Hepburn film, but her father tells her to get up to the apartment instantly before George came up.
• Lindsay Enright: (played by Jessica Hecht) An ex-girlfriend of George's, was in a book club in "The Couch". They were supposed to read Breakfast at Tiffany's but George watch the film instead, and stated incorrect facts about the book. She then appears in "The Gymnast".
• Jake Jarmel: (played by Marty Rackham) Author Elaine dated for a period. Dislikes using exclamation marks in "The Sniffing Accountant". Broke up with Elaine after she bought Jujyfruits immediately after hearing he was in a car accident "The Opposite". Bought his glasses in Malaysia so no one else would have a pair like them "The Scofflaw". He started a fight with Mr. Lippman when he noticed that Lippman had the same "unique" glasses as himself.

• Mr. Kruger (played by Daniel von Bargen): President of Kruger Industrial Smoothing, for which George Costanza works during most of the ninth and final season. Kruger is noted for his total apathy towards his job and the success of his company. George's description of the company is "Kruger Industrial Smoothing: 'We don't care, and it shows'" ("The Strike"). George is often forced to push Kruger to do his work, to which Kruger usually responds, "I'm not too worried about it." He also attended the Festivus dinner. Kruger's company "botched the Statue of Liberty" job as they "couldn't get the green stuff off" and is infamous for losing money. Appeared in four episodes: "The Slicer", "The Strike", "The Burning", and "The Maid".

• Sally Weaver, played by Kathy Griffin (Suddenly Susan, Kathy Griffin: My Life on the D-List): Susan Ross's roommate in college, originally from Memphis, she appears in "The Cartoon" and "The Doll" as an aspiring actor and comedian. In "The Doll", she was indirectly responsible for ruining Jerry's bit for The Charles Grodin Show, not once but twice. In "The Cartoon" she becomes famous and even gets a cable special for her one-woman show, titled "Jerry Seinfeld is the Devil", which naturally becomes a favorite of Newman's. Later, it was revealed that Sally was an executive at Federal Express.
• Wyck Thayer (played by Bruce Davison): Chairman of the Susan Ross Foundation, who assumes that George actually killed his fiancée. Appeared in the first two episodes of the eighth season. George consistently calls Wyck "Wink".
• Franklin Delano Romanowski, aka "FDR", (played by Michael McShane): Another of Kramer's eccentric friends. In "The Betrayal" he uses his birthday wish against Kramer as the result of a grudge held after Kramer struck him in the back of the head with a snowball. The same actor also appears briefly in "The Wizard" as the hot dog vendor talking with George. Although his character's name is not revealed, he is presumably the same character because he was seen selling hot dogs in "The Betrayal" also. He is mentioned by Kramer in several episodes, usually in some outrageous anecdote.
• Sal Bass (played by Tony Amendola): Kramer meets him at the health club and thinks he is Salman Rushdie. In a later episode, Sal Bass is shown watching Jerry's pilot program with Sedra. Out of the blue, Bass remarks, "You know, that Kim Novak had some really large breasts."
• Bob and Ray/Cedric (played by Yul Vazquez and John Paragon): Hostile effeminate (possibly Latino) duo that accost Cosmo Kramer in "The Soup Nazi", "The Sponge", and "The Puerto Rican Day". They are widely known as "street toughs". They steal Elaine's armoire that Kramer is guarding in "The Soup Nazi", verbally and physically attack him for not wearing an AIDS walk ribbon in "The Sponge", and attack him when he accidentally burns a Puerto Rican flag. John Paragon's character is credited as "Ray" in "The Soup Nazi", but is addressed and credited as "Cedric" in "The Sponge".
• Mabel Choate (played by Frances Bay): The woman at Schnitzer's deli who bought the infamous last marble rye, which Jerry went on to steal from her on the street in order to give to George to carry out one of his numerous idiotic schemes. She reappeared in a later episode at Del Boca Vista to cast the deciding vote in Morty's impeachment, when she recognized Jerry as the thief of her rye.
• Ricky (played by Sam Lloyd): The man that takes Frank Constanza's TV Guide from Elaine in the subway and later turns it into a bouquet to declare his affection for her during "The Cigar Store Indian". He reappears in a later episode "The Pie" where it is revealed the reason mannequins looking like Elaine are appearing all over New York and Chicago is because he still thinks of her.
• Allison (played by Kari Coleman): George's ex-girlfriend whom he claims is obsessed with him, proven by the fact that she threatened to kill herself if George broke up with her. Furthermore, in the end of the episode, "The Smelly Car", Allison, in an apparently lesbian-like manner, compliments the vest of George's other ex-girlfriend, Susan.
• Tia Van Camp (played by Jennifer Campbell): Blond supermodel whom Jerry is seated next to on an airplane flight back to New York ("The Airport"). After persuading Elaine to take the last available seat in Coach so that he could get an open seat in First Class, Jerry can't believe his luck when he meets his gorgeous seatmate. They immediately hit it off and end up flirting with each other for the entire flight, all while enjoying the culinary and creature-comfort delights of the first class cabin. Meanwhile Elaine is miserably sitting in a cramped middle seat back in Coach, and manages to get overlooked during the meal service. When she finally does get served by the surly male flight attendant (played by Jim J. Bullock), she has to settle for the last remaining meal -— the kosher plate. Jerry ends up getting a future date with Tia, who also appears in a subsequent episode ("The Pick"). Jerry notices she is wearing a familiar scent (The Ocean by Calvin Klein), and realizes her perfume was really Kramer's idea for The Beach which he once pitched to a seemingly disinterested marketing exec at Calvin Klein. Tia eventually dumps Jerry when she notices him in his car, appearing to pick his nose. When his phone calls go ignored, Jerry finds her at work and tries to explain, insisting that he was only scratching the side of his nose, and that there was no nostril penetration. She doesn't believe him, and leaves him standing there, humiliated, in the lobby of an office building. While a crowd of bewildered bystanders gathers around him, Jerry proclaims his humanity with a famous line borrowed from The Elephant Man (a film about a freakishly deformed outcast)... "I am not an animal!"
• The Doctor (Siegel/Wexler) (played by Victor Raider-Wexler): The doctor who performed the surgery in "The Junior Mint", he was also the doctor who broke the news of Susan's death in "The Invitations" and who diagnosed George's atrophied condition in "The Summer of George". Also testified in "The Finale" about George's reaction to the news of Susan's death.
• Sid: Professional car parker. George fills in for him briefly in "The Alternate Side" and fails miserably. Sid appears again in "The Parking Space".
• Earl Haffler: Appeared in "The Diplomat's Club". He made bets with Kramer on which planes coming to the airport would arrive later than scheduled. Earl appears again in "The English Patient".
• Ramon: (played by Carlos Jacott): Annoying poolboy at Jerry's former health club. ("The Pool Guy") He also appears in the courtroom in "The Finale".
• Mike Moffit: (played by Lee Arenberg): Supposedly calls Jerry a "phony" and gets into a fight with George over a parking space in front of Jerry's apartment, in "The Parking Space". He also appears as Kramer's bookie in "The Susie", where Jerry accidentally breaks his thumbs and traps him in the trunk of Jerry's car.
• Rebecca DeMornay: (played by Sonya Eddy): A thrift store clerk who is prone to violence and works with the homeless. She once threatened to jump over the counter and punch George "in the brain". Appears in "The Bookstore" and "The Muffin Tops".
• Lt. Bookman, played by Philip Baker Hall (Boogie Nights): A library cop that Jerry has eluded since his 1971 checkout of Tropic of Cancer. His dedication to his job and coincidental surname are cause for Jerry's dismissive attitude towards him. He accuses Jerry of preventing other youngsters from experiencing the book's sought after adult-themed content or as Bookman refers, "pee-pees and wee-wees". His character is defined by his deadpan delivery and tendency to dramatically flip his trench coat during interrogations. Appears in "The Library" and "The Finale, Part 2"
• Matthew: (played by John Christian Graas): Son of the purveyor of the "fat-free" yogurt, Matthew is a 10-year-old boy who idolizes Jerry. He overhears Jerry swearing, and, following his idol's lead, refers to Jerry as a "funny ****er". He ruins an audiocassette of Jerry's comedy, at which Jerry lets loose a torrent of obscenity. When the yogurt is revealed to have fat, Matthew cusses out Jerry again. Matthew first appears in the Parking Space in Season 3 and puts in his two cents over whether George has a parking space. Matthew is the only recurring child character in the series, unless you count the "ugly baby." Appears in "The Non-Fat Yogurt" and "The Parking Space"
• Rachel Goldstein: (played by Melanie Smith): Jerry's most dated girlfriend in the series, having appeared in four episodes (including a two-part episode). In The Raincoats, she and Jerry make out while watching Schindler's List and are seen by Newman, who informs Jerry's and Rachel's parents of the incident. As a result, her father tells Jerry she won't be seeing him again but they are still together later in the series. In The Hamptons, Rachel accidentally walks in on George naked while he is a victim of "shrinkage", having just got out of the pool. She tells George's girlfriend, who immediately returns home as a result. In The Opposite, she breaks up with Jerry, who quickly says he'll find somebody else as things always even out for him.
• Tina Robbins: (played by Siobhan Fallon): A "waitress-actress", who is Elaine's roommate in her original apartment, later moving out and sub-letting it to her. She is introduced in The Deal and dates Kramer in The Truth, much to the dismay of Elaine, who complains about the loud tribal music and sexual noises in her apartment. She makes a brief appearance in The Opposite, kicking Elaine out of her apartment for, among other things, buzzing up a jewel thief and using Canadian quarters in the washing machine.
• "Deena: (played by Mary Jo Keenan of Nurses): A childhood friend of George who thinks that he is mentally unstable after she repeatedly catches him in bizarre situations. First, in The Gum, she notices striking similarities between George's behaviour and that of her mentally unstable father, that being "nervousness, irritability, and paranoia". Her suspicions are heightened when she sees him walking down the street in a King Henry VIII costume. Then, in "The Doll" she catches him in the coffee shop, alone and screaming at a doll that looks his mother. Finally, in The Bottle Deposit she is visiting her father at the mental asylum when she runs into a hysterical George, who was mistakenly sent there by Mr. Steinbrenner. She ignores his pleas to help him escape, believing that he is finally getting the help he needs.

Unseen characters

• Cousin Jeffrey, Jerry's horse-faced cousin, about whom Uncle Leo always raves. He worked for the New York City Department of Parks and Recreation. Jeffrey once got Jerry tickets to a Paul Simon concert, and a glasses-less George once claimed to see Jeffrey kissing Jerry's girlfriend in the street (it turned out to be a policewoman patting a horse). According to Uncle Leo, Jeffrey's favorite animal is the leopard because he likes the spots, and he keeps in close contact with his college botany professor, a friendship which Leo thinks is rare. Jeffrey received a citation from the city for his edible foliage tour through Central Park.
• Bob Sacamano, one of Kramer's best friends, who is often referred to as the source of nutty ideas or inaccurate information. Bob's father lives in Florida and is the source of faulty electric organizers, known as "Willard's," that foil Kramer's run for condo board president. In "The Heart Attack", Kramer explains how his friend Bob had had a botched hernia operation, so that now he has a high pitched voice and spends his days in a wheelchair. He also supposedly had a case of rabies at one point. Larry Charles created Sacamano, after his real-life friend of the same name.

• Lomez, another never-seen friend of Kramer's. He is an Orthodox Jew, according to Kramer in "The Fatigues". In "The Betrayal", Kramer bangs on the door of a portable toilet yelling "Come on Lomez, we're going to miss the movie!" When Kramer starts the Peterman Reality Bus Tour in "The Muffin Tops", he notes Lomez's place of worship on the tour. Kramer purchases a hot tub from Lomez in "The Hot Tub" and speaks on the phone to him while taking a shower in "The Apology". In "The Package", Kramer tells Jerry that he traded his stereo to Lomez for some steaks. In "The Voice", Kramer's intern Darren tells Jerry and George that "Mr. Kramer's in a meeting with Mr. Lomez." And in "The Van Buren Boys", one of the Susan Ross Scholarship interviewees is credited, although not mentioned as, Lomez Junior. His only line is "You like that, don't you?" when George mentions that he has a 4.0 GPA.
• Jay Riemenschneider, another friend of Kramer's. Kramer once mentioned that Jay "eats horse (meat) all the time" (The Seven).
• Corky Ramirez, another friend of Kramer's "up on 94th street" ("The Little Kicks"). A friend of Kramer's called "Ramirez" appears at a bar in "The Van Buren Boys".
• Jerry's Sister, referenced in (The Chinese Restaurant).
• George's Brother, referenced in (The Suicide) and (The Parking Space).
• Elaine's sister, referenced in (The Stakeout) and (The Pick).
• Len Nicademo, another friend of Kramer. Kramer moved in with Len when Len "had the gout" (The Stand In).
• Specter, yet another friend of Kramer's. Was said to have a fat fetish and that he never dated a woman under 250 lbs. Specter was also said to become a minimalist in "The Tape".
• Simons, one of George's friends who gave him stock exchange advice in the episode "The Stock Tip".
• Aunt Sylvia, Jerry refers to his Aunt Sylvia during a conversation with Elaine on her front stoop in the episode "The Soup".
• Sharon Besser, a woman from Jerry's past who in 1973 played a part in either the "greatest moment" or "worst moment" of his life. Mentioned in "The Pony Remark".
• Jerry "Pachyderm" Persheck, also known as "The Derm" is referenced by all four major characters in the episode The Stand-In. One evening Pachyderm exclaimed that he was going to approach a woman; however, before approaching her he grabbed two pieces of pizza with his bare hands that were much too hot. Pachyderm, determined to approach the woman, held the two burning pieces of pizza in his hands until he resorted to juggling them which ultimately resulted in him throwing the pizza in the air. According to Elaine, the whole place "went crazy" when one piece landed on Pachyderm's face and the other landed on the woman's face. At the end of the episode George's girlfriend leaves him for Pachyderm who has apparently resorted to repeating the pizza event as a way to pick up women.

Imaginary characters and aliases

• Eduardo Corrochio, Elaine Benes's imaginary boyfriend in "The Good Samaritan". Not to be confused with the Spanish-born tap-dancing champion.
• Whitey Fisk, George's imaginary friend. George tells Jerry and Elaine that he saw Last Tango in Paris with him. Jerry claims Whitey is the "Summer Jerry," due to the fact that they were supposedly best friends when George was away at camp.
• Art Vandelay, George's imaginary alter-ego. Referenced in many episodes, and is most known to be linked to George's aspiration to be an architect. In "The Finale" The name of the judge is, by coincidence, Art Vandelay.
• Kel Varnsen is an alias used by Jerry in "The Boyfriend", in order to help George with his Vandelay Industries. He also uses this alias in "The Puerto Rican Day".
• H.E. Pennypacker. Kramer appears as H. E. Pennypacker, "a wealthy industrialist". In order to help Elaine get revenge on Putumayo in "The Millennium", Kramer (as "Pennypacker") attempts to use his pricing gun to greatly reduce the prices of the store's clothing. When Kramer inadvertently crushes the pricing gun, he removes the desiccants from some of the clothes, and tells Gladys Mayo, "I think I'm going to build a roller coaster instead." He also uses the alias in "The Puerto Rican Day" where he poses as a buyer interested in an apartment in order to use its bathroom.
• Martin van Nostrand or Peter von Nostrand. As Dr. Martin von Nostrand, Kramer tried to get Elaine's medical chart in "The Package". He also used the von Nostrand alias in "The Slicer", posing as a dermatologist, and is recognized as Dr. von Nostrand in "The Strike". Kramer used the name Martin von Nostrand (without the "doctor" prefix) while auditioning for the role of himself on the show Jerry in "The Pilot, Part 1". Kramer posed as Professor Peter von Nostrand in "The Nose Job" in order to retrieve a jacket from another man's apartment.
• Wanda Pepper is an alias used by Elaine in "The Nose Job" in order to pick up Kramer's jacket.
• Dylan Murphy is a name Jerry makes up for himself in "The Limo". George poses as Colin O'Brien in the same episode.
• Susie, an alter ego created by Elaine in "The Susie", whom Peggy believes is real and J. Peterman claims to have had an affair with while he is speaking at her funeral. Elaine hates when people refer to her as "Sooz."

Notable one-time characters

Notable multiple role-player

Actual people played by others

Notable animals

Guest appearances

In addition, Seinfeld makes allusions in dialogue to real people.

Celebrities who played themselves

Celebrities or significant TV actors not playing themselves

References