Mr. Manners/Mr. Candy: An educational speaker who initially came to Highland High to teach the students proper manners (Manners Suck). He returns as Mr. Candy, promoting a candy-selling drive for the school (Candy Sale). During both incidents, he instantly clashes with Beavis and Butt-head. Beavis exacts revenge by accusing Mr. Manners/Mr. Candy of hitting him or trying to molest him. When the man fights back, he first gets into a confrontation with Mr. Van Driessen, and later he fares much worse in a fight with Coach Buzzcut, who repeatedly kicks him in the head. This character was voiced by actor David Spade.
Janitor/crazy farmer: Shown in different contexts; Besides Highland High, he is once shown as the janitor at the local mall. In Bungholio: Lord of the Harvest, he is portrayed as a slow-witted, bluish-gray-skinned farmer who is dangerously senile. He appears to be attempting to decapitate Beavis with a chainsaw.
Mrs. Dickey: A female science teacher at Highland, and occasional customer at Burger World. She is annoyed by Beavis and Butt-head, particularly by their incessant laughing when she tries to teach sex education (No Laughing). She appears much less frequently as the series progresses.
Mr. Herrera: A middle-aged Latino Spanish teacher who hates Beavis and Butt-head, much like the other teachers. Beavis and Butt-head always mispronounce his name. He had a number of early appearances, but later faded into the background. His most prominent appearances are in No Laughing and The Great Cornholio. He is also seen at the party in the teachers' lounge in Beavis and Butt-head Are Dead.
Jim the Substitute: A substitute teacher who briefly takes over when Mr. Van Driessen injures himself attempting to assume the lotus position on his desk (Substitute). Beavis, Butt-head, and other classmates take an immediate liking to him on account of his free-spirited, unorthodox way of running the class. Despite the duo's cynicism and irresponsibility, he continues to like them (and everyone else). He is last seen being seriously injured when Beavis and Butt-head fail to catch him when he falls backward off the desk in a trust exercise.
Dreama: Yet another personification of the show's frequent jabs at New Age lifestyle, Dreama is a young woman who meets the boys in the school nurse's office after the two are sent there due to their poor personal hygiene (Let's Clean It Up). She dances, plays Hindustani music on a tape player, and ultimately gives an oil massage to the two, much to their delight. It is later revealed that Dreama is a teacher's aide at the school, and her actions were attributed to a daze that ensued after she suffered a concussion.
Dr. Floss: A psychiatrist who is hired at Highland High (They're Coming to Take Me Away, Huh Huh). She requests to see the duo in her office immediately after introducing herself in Mr. Buzzcut's class. She gives the boys a Rorschach inkblot test, with the boys interpreting each picture as a man masturbating. When shown a signed photo of Julio Iglesias (grasping a microphone stand protruding from between his legs), Butt-head describes it as "just a bunch of weird shapes." She sends them to an inpatient psychiatric facility.
Ms. Jenkins: The school's speech therapist (Speech Therapy). Beavis and Butt-head thoroughly enjoy her class as they misinterpret what she is teaching. They mistake a diagram of the vocal cords for a picture of a vagina, and they mistake things said during speech exercises. They mistake the phrase "as much" for "assmunch", and mistake the phrase "but whole" for "butthole". Principal McVicker becomes angry when the boys repeat these phrases after the teacher asks them to show him what they learned in class.
Cassandra: Mainly a parody of hippie or New Age thought (like Mr. Van Driessen). She wears glasses, Dr. Martens boots, and a shapeless blue dress. She is the only girl aside from Daria who does not appear to despise either of the boys. In Wall of Youth, Butt-head attempts to flirt with her briefly, but she is oblivious to his interest. In Animation Sucks, she gives the boys friendly advice without the condescending sarcasm Daria would use. It is implied that she is lesbian in The History of Women, in which she chooses singer K. D. Lang as the woman she admires most in an oral report for Mr. Van Driessen's class. This implication is also made in the movie when she appears at a "coming out" event hosted by Mr. Van Driessen.
Earl: Usually seen sitting in the front row of class looking at pictures of nude women in a men's magazine, he has a buzz cut hair-style, a tough angular face with a stubbly goatee, and a black shirt buttoned tightly at the collar (in some episodes, a black jacket with a white t-shirt underneath). Earl was a central character in another episode that involved him trying to kill Beavis and Butt-head. In the end, he was punished by Mr. Van Driessen, who confiscated his pistol, which made him cry. In Pierced, Beavis and Butt-head mock Earl's earring, causing him to beat them up, but then the duo decide to get their own ears pierced. The latter episode is one of the few in which Earl actually speaks.
Kimberly: A pretty girl who is often the object of unwanted attention from Beavis and Butt-head. She refuses to practice CPR on them during Buzzcut's swimming class (Water Safety). The duo file an unsuccessful sexual harassment suit against her on the grounds that she is giving them "stiffies" (Sexual Harassment). In Crisis Line she calls the duo unknowingly to ask for relationship advice. Butt-head recommends that she have sex the next day with anyone who is polite to her. When that day comes, Kimberly introduces the pair to her boyfriend, who promptly beats them up. In Whiplash Beavis tries to chat with her on the school bus prior to the accident that he and Butt-head have set up to try to get money for being injured.
Dean: A chubby boy with glasses and brown hair. In Wall of Youth, he is seen talking to Beavis and Butt-head about Jurassic Park, and in Substitute he gives Jim, the substitute teacher, a collage as a special present. He is one of the few students who don't appear to hate Beavis and Butt-head. In Bus Trip, Mr. Van Driessen calls the last name "Zunker" as Dean boards the bus for a field trip to Mount Perdido.
Hiroshi "Hiro" Nakayama: An exchange student from Japan. Beavis and Butt-head become Hiro's chaperones and are tasked with guiding Hiro through American culture (Foreign Exchange). Upon arriving back in Japan, it becomes apparent that he has picked up Beavis and Butt-head's masturbatory habits and affinity for metal music, much to his family's dismay.
Tommy: The resident jock of the school. In Spanish Fly he consumes the Spanish Fly Beavis and Butt-head pour into what they believe is an attractive girl's milk carton. As a result, the duo mistakenly believe that Tommy wants to have sex with them. This fear manifests itself in the locker room and during gym class as Tommy chooses Beavis as a wrestling opponent. The match begins with Tommy dominating until Beavis, out of desperation, kicks him in the testicles at Butt-head's suggestion.
Mrs. Stevenson: Stewart's mother and good-natured housewife, who is depicted as an airhead. She enlists the duo's help when Stewart disappears (Stewart Is Missing), and she trusts them to take his homework to school for him when he is sick (The Great Cornholio). She believes that Beavis and Butt-head are good friends of her son, being oblivious to their antics and their negative influence on him. The duo pay her little respect or attention except in regard to her breasts. In Stewart's House she has a Southern accent, but for the rest of the series she possesses a thick Midwestern accent.
Lolita and Tanqueray: Two skimpily-dressed trailer-trash tramps, always introduced with the line "I'm Lolita, and this here's Tanqueray" in a heavy Texas accent. Lolita has dark hair and Tanqueray is a blonde. They usually exploit their sexuality to manipulate the duo out of their money, concert tickets or other items. Over the course of the series the two drastically changed appearances, with Lolita originally having much darker skin.
Redneck woman: This unnamed woman appears a number of times. She is usually depicted in a messy trailer, with rollers in her hair, unshaven legs, circular bandages over the corns on her feet and often a cigarette hanging out of her mouth. In 1-900-BEAVIS she makes money by imitating a sexy female on a phone-sex hotline. In Temporary Insanity and Whiplash she appears as Beavis and Butt-head's school bus driver. In Tired she sits in front of her trailer in a lawn chair with her feet propped up on a cardboard box as Beavis rolls down a hill in a giant tire and Butt-head runs past chasing him. In Radio Sweethearts she is shown in the same lawn chair listening to the radio when the boys guest DJ.
Billy Bob: An early recurring character who appears much less often in later seasons. Depicted as an obese redneck, Billy Bob is often shown wearing only a cowboy hat and briefs. He appears fully clothed in Heroes as the owner of a skeet shooting establishment. He wears stereotypical redneck clothes such as a tight-fitting green T-shirt, white jeans and cowboy boots. He often smokes a cigar.
Biker Lady: A very attractive yet gruff-looking female biker who appears in Friday Night. She uses the boys as accessories to shoplift items at Maxi-Mart. The boys cooperate in hopes that they will "score" with her. Once the owner suspects, she escapes by throwing hot coffee in his face and taking the boys along for a ride on her chopped bike.
Mistress Koura Anthrax: An elderly dominatrix who is featured in Door to Door. When the boys ring her doorbell requesting charity money, she invites them in only to ambush them, chain them to the wall, and begin whipping and dominating them. In exchange for the time the boys spend with her, she donates a check for $100. She writes a letter to Mr. Van Dreissen (which he reads aloud to the whole class) saying that he can send Beavis and Butt-head over to her place any time they need more "donations" .
Harry Sachz: A tall, physically-imposing man with a receding hairline and mullet, he suffers through at least a month of Beavis and Butt-head harassing him through a series of prank calls, which usually involve the flushing of toilets and other scatological noises (Prank Call). Sachz eventually purchases a caller ID to get their phone number. He calls Beavis and Butt-head, offering to deliver a free pizza in order to find out where they live. Instead, Beavis and Butt-head read Stewart's name and address off some mail they stole from his mailbox, and Stewart's father suffers the consequences. In Nothing Happening he is shot to death by the police when they think he is armed and his body is shown being carried away on a stretcher.
Maxi-Mart Owner: This working stiff wears a middle-part hairstyle and he is habitually annoyed by Beavis and Butt-head. The duo often loiter in his convenience store while trying to pick up chicks. He occasionally exacts a small measure of revenge. He sells Butt-head day-old bug-infested nachos in Beavis and Butt-head vs. the Vending Machine, and used forks and stale donuts (picked out of the trash can) in Party. One such attempt backfires when he calls the police to report a robbery in progress when Butt-head helps himself to working the cash register (Another Friday Night). After the police arrive, he is mistaken for an armed culprit, and he is beaten before being arrested.
Clark Cobb: A parody of Christian Televangelists. The owner of Cobb's Family Hardware is a card-carrying member of the Christian Businessmen's Association. He has a sock puppet named Socko, which he uses to try to teach evangelical lessons.
Bill: An old man who runs the bar at the American Legion hall that Tom Anderson frequents. Both of them were in the military. Although he never meets Beavis and Butt-head, he unwittingly contributes to their antics. When Bill asks Anderson to watch the bar for a few hours (Yard Sale), Anderson puts Beavis and Butt-head in charge of his yard sale. While Anderson is gone, the two sell everything inside his house for sixty dollars.
Ric Aaron Joseph: A photographer whose most prominent role was in Dude, A Reward, in which his lost photography equipment is found in a local park by Beavis and Butt-head. The duo take crude, up-close photographs of their own body parts (up their nostrils, down the front of their pants, etc.) before breaking the equipment, then returning it for the reward money. Joseph submits the photos as his own work for a photographic exhibit, winning praise from those who view them as a work of genius. He has also been depicted as the photographer for class pictures for Highland High, and as an art instructor in Figure Drawing.
Gina: Todd's girlfriend appears several times. She works in a beauty salon (Top O' The Mountain) and she has a heavily hair sprayed 80's metalhead appearance. (A different character depicted as an upperclassman at Highland High is also named Gina.)
Madame Blavatsky: From the episode of the same name, she is a fortune teller who speaks in a faux-East European accent. She attempts to tell Butt-head's future, only to have Beavis seize her crystal ball and give predictions of a war, which turns out to be the reflection of a news broadcast on the television behind him. Her character is based on a real person of Russian origin, Helena Blavatsky.
The Doctor: Highland's unnamed town physician appears several times. Like several other characters, he is portrayed in different ways at different times. In Rabies Scare he is shown as a shadowy, sadistic individual who gives Beavis unnecessary rabies medication. He reattaches Beavis' severed finger in Woodshop (only to have him pull it back off by picking his nose), and he appears as a plastic surgeon in Plastic Surgin, in which the duo believe they are getting "wiener implants" when in fact they are getting nose jobs. In the latter episode the name "Doctor Fisk" appears on the office door. He also appears on a television news program as an expert to explain an incident of contaminated meat at Burger World (Tainted Meat).
Dr. Leibowitz: He runs an impotence clinic, which the boys see advertised on television (Impotence). He is a heavy-set balding man with gray hair, wearing a white lab coat. The boys get the idea from the clinic's ad that he can help them "score". After eventually getting annoyed with their antics, he thinks "mankind needs me" and he gives them a bottle of saltpeter to discourage them from breeding. After taking it, the boys don't find the pictures they saw in the office nearly as stimulating.
Harry Buddisker: A middle-aged balding man with a stubble beard and a chunky appearance, he is a local health department inspector. He enters Burger World around closing time just after Beavis and Butt-head have thrown all manner of food and drink into the ceiling fan, trashing the restaurant (Closing Time). They call him "Harry Buttwhisker". They feed him fried worms, calling them "seasoned curly fries". He also appears as the father of the bride in Here Comes the Bride's Butt.
Gus Baker: A parody of Rush Limbaugh, Baker mistakenly believes Beavis and Butt-head to be positive young role models when they call his talk show to praise his advocacy of the death penalty for criminals (Right On). As a result, he brings them on the show to discuss "immoral" music videos. However, their crassness and bad language soon create a commotion, ending with Baker's show and Grassroots presidential campaign being ruined when Beavis mooned the camera.
Dan Silver: A parody of Tony Robbins and other self-help gurus (The Miracle That Is Beavis). He gives Beavis a brief motivational speech at a book signing, along with a free copy of his book "Seize The Power". Beavis's assertiveness increases dramatically (much to the aggravation of Coach Buzzcut and Principal McVicker), but it also annoys Butt-head, who regresses Beavis to his old self with a few smacks across the face.
Peter Small: A parody of fitness guru Tony Little (Take a Lap), he hosts infomercials for performance-enhancing supplements in such an aggressive manner that it convinces Beavis and Butt-head to exercise and concoct their own supplemental drink. He later dies of heart failure brought upon by the strain of defecation.
Captain Dick Jackman: A weather man on a Highland television station, he appears in Teen Talk as the host of a program on which he talks to troubled teens. He unsuccessfully tries to appear tuned in to the lingo of teenagers. Beavis and Butt-head are sent to appear on the show by Principal McVicker as a disciplinary measure.
Ross and Harlan: White trash criminals who make their first appearance breaking into the Stevensons' residence to steal their belongings while Beavis and Butt-head are inside watching pay-per-view television (Stewart Moves Away). Upon encountering the duo they sarcastically pose as professional movers, stealing valuable items while inciting the boys to smash less valuable items and to show them where the "good stuff" is. The duo instantly take a liking to Ross and Harlan, never realizing that they are robbers, even after the Stevensons return and Mr. Stevenson yells that they have been robbed. The two criminals play a brief but important role in Beavis and Butt-head Do America when they break into the boys' house and steal their TV set, thus beginning the duo's cross-country quest for it. They are also the hitmen who Muddy hires to murder his wife.
Slade: A member of Todd's gang. Slade is stocky with long brown hair, wearing a white t-shirt with cutoff sleeves and blue jeans. He appears in several episodes.
Leroy: A local thug who leads a gang that are rivals to Todd. In one episode, Leroy and two gangbangers go to the duo's house to look for Todd, who is hiding there (Safe House). After Beavis claims that he and Butt-head are part of Todd's gang, Leroy and the others beat them up as a "message" for Todd. Shortly afterward, they pound the duo again when they end up in the same jail cell.
The inmates: One is a hard-timer who has a prosthetic leg and glass eyeball as a result of his escape attempts and fights. He is ordered by the warden to intimidate Beavis and Butt-head and other high school students with a profanity-laden tirade during their visit to a prison in a parody of the Scared Straight! video series (Scared Straight). Beavis and Butt-head are so impressed with him and the two other inmates they meet, that they determine that prison is to their liking.
Betsy Wiener: An attack on Tipper Gore and the Parents Music Resource Center. She is a member of the group "Decency In Media". She blames music videos for actions that result in the duo being struck by lightning (Lightning Strikes). In actuality, they were influenced by a PBS documentary on Benjamin Franklin and his famous kite experiment.
Saint Peter: He appears to meet Beavis at the Pearly gates after Beavis apparently dies (The Final Judgement of Beavis). Later it is revealed that he was unconscious and merely dreaming. After Beavis mistakes him for Santa Claus, St. Peter begins a lengthy review of Beavis's life detailing his frequent acts of mischief, including urinating in the gym, passing out chocolate laxatives in his kindergarten class, mutilating an action figure in a "most disturbing manner", and "touching himself in an impure manner". He goes so far as to call Beavis "butt-munch", and eventually denies him entrance into Heaven.
Hank: Leader of a religious cult posing as God (Beavis and Butt-head Meet God), he resides in a complex where Beavis and Butt-head are brought after cult members pick up the duo hitchhiking. They are confined to living quarters with no television. They promptly escape to join Hank in his room, where the three sit on a couch and enjoy heavy metal music videos together.
Thor: Appears in some of the earliest episodes. His physical stature is reminiscent of a gorilla. He is often summoned to deal with Beavis and Butt-head when they are being disruptive at a place of business. This involves him grabbing the duo by their ankles and repeatedly slamming them to the ground.
Sergeant Dick Leakey: A soldier in a recruiting office who tries to convince Beavis and Butt-head to join the Army (Be All You Can Be). After luring them inside with a promise to let them touch his grenade launcher and then showing them a video about how the Army uses heavy metal music to scare the enemy, he tries to force them to enlist at gunpoint. They sign the enlistment forms as "Major Woody" and "Private Parts".
Katya: She appears in Bride Of Butt-head, in which the boys find an ad for a mail-order bride in a magazine. Butt-head calls, claiming to be "a rich American with a big wiener". He is put on hold while the manager of the company talks to Katya, who is disappointed that her current "husband" is not rich as promised. The manager matches the two, paying for transport fees. Once Katya arrives, all Butt-head is interested in is "doing it", much to her irritation. Eventually, she and Todd end up having sex instead.
Principal Brown: The principal of Wilson Elementary School, where Beavis and Butt-head are sent after being demoted from ninth grade (Held Back). After they fail math in progressively lower grades and cause disruptions in kindergarten, Principal Brown contemplates sending them back to pre-school. Beavis and Butt-head's suggestion to put them in a higher grade gives him an idea to get rid of them. He brings them back to Highland High, telling Principal McVicker that they are star pupils and they graduated them early - and they aren't taking them back.