In 1965 she debuted in Doctor Zhivago, playing a minor role.
It was her work with Hammer Film Productions that elevated her to cult figure status. She starred in The Vampire Lovers, a film based on Joseph Sheridan Le Fanu's novella Carmilla, and Countess Dracula, a film based on the legends around Countess Elizabeth Báthory. She played a brief role of a librarian in cult film The Wicker Man (1973), appearing nude in the bathtub.
During the 1980s, Pitt returned to roles in mainstream films and on television but her popularity with horror film buffs saw her in demand for guest appearances at horror conventions and film festivals. Other films Pitt has appeared in outside the horror genre are: Who Dares Wins, (aka The Final Option), Wild Geese 2, Hanna's War etc. Generally cast as a 'baddie', she usually manages to get killed horribly at the end of the final reel. "Being the anti-hero is great - they are always roles you can get your teeth into."
It was at this time that the theatre world also beckoned. Pitt founded her own theatrical touring company and starred in successful productions of Dial M for Murder, Duty Free (aka Don't Bother to Dress), and Woman of Straw.
Of minor note, Pitt also narrates on the 1998 Cradle of Filth album entitled Cruelty and the Beast, though her narration was done strictly in-character as Countess Elizabeth Bathory, whom she had portrayed in Countess Dracula.
This was followed in 1984 by a novelisation of the Peron era in Argentina, where she lived for a number of years after falling foul of the establishment in England. "Argentina was a wild frontier country ruled by a berserk military dictatorship at the time. It just suited my mood."
In 1984, Pitt and her husband Tony Rudlin were commissioned to script a Doctor Who adventure. The story, entitled "The Macro Men", was one of a number of ideas submitted by the couple, after she appeared in the season 22 DW story Warriors of the Deep. The plot concerned events surrounding the Philadelphia Project - a US military experiment during the Second World War to try to make the naval destroyer USS Eldridge invisible to radar - about which Pitt and Rudlin had read in a book entitled The Philadelphia Experiment by leading paranormal investigator Charles Berlitz. It involved the Doctor, and companion Peri, arriving on board the USS Eldridge in Philadelphia harbour in 1943 and becoming involved in a battle against microscopic humanoid creatures native to Earth but previously unknown to humankind. The writers had several meetings with script editor Eric Saward and carried out numerous revisions, but the story progressed no further than the preparation of a draft first episode script under the new title 'The Macros'.
In 1999, her autobiography, Life's a Scream (Heinemann) was published, and she was short-listed for the Talkies Awards for her own reading of extracts from the audio book. "I hate being second".
The autobiography detailed the harrowing experiences of her early life in a Nazi Concentration camp, her search throughout the European Red Cross Refugee Camps for her father, and her escape from East Berlin, one step ahead of the Volkspolizei. "I always had a big mouth and used to go on about the political schooling interrupting my quest for thespian glory. I used to think like that. Not good in a police state."
The Bedside Companion for Ghosthunters (Batsfords) is Pitt's tenth book. It was preceded by the Bedside Companion for Vampire Lovers (Batsfords). The Ingrid Pitt Book Of Murder, Torture And Depravity was published in October 2000.
Several other books are in the pipeline. Pitt's credentials for writing about ghosts spring from a time when she lived for a while with a tribe of Indians in Colorado. Sitting with her baby daughter, Steffanie, by a log fire, she was sure that she could see the face of her father smiling at her in the flames. "I told one of the others and he went all Hollywood Injun on me and said something like 'Heap good medicine'. I guess he was taking the mickey."
Other writing projects include different look at Hammer Films entitled The Hammer Xperience.
Pitt writes regular columns for various magazines and periodicals, including Shivers magazine, TV & Film Memorabilia and Motoring and Leisure. She also writes a regular column, often about politics, on her official website, as well as a weekly column at UK website Den of Geek. Recently she has been added to the merchandising of Monster-Mania: The Magazine.
In spite of her busy workload, Pitt still manages to visit conventions and film festivals in the UK, Europe and USA. "It's great meeting the fans. They tell me that I am more beautiful now than when I was making films a quarter of a century ago. All lies, of course, but sweet. And where else is an old bag like me going to get strapping young men and women whispering sweet nothings in her ear?"
Pitt has a passion for World War 2 aircraft. After revealing her passion on a radio programme, she was invited by the museum at RAF Duxford to have a flight in a Lancaster.
She has a student's pilot license and a black belt in karate.