She moved to the UK to improve her English in 1963, she worked as an Au Pair, studied Stenography and became a model for a time. She started her acting career in 1968 in the film La Ragazza con la pistola (English: Girl with a Pistol).
Roles followed in such diverse TV-series as The Saint (with Roger Moore), On The Buses and Doctor in the House, in which she had memorable (but small) guest roles, as well as a larger role in an episode of The Persuaders!, playing a Judo instructor who teams up with Danny Wilde (Tony Curtis).
She also played a larger role in the low-budget sci-fi sex comedy Zeta One (1969), and towards the end of her career appeared as a hostess in the popular game show The Golden Shot (hosted by the late Bob Monkhouse).
Her most famous role however is as the vampire Carmilla/Mircalla in Hammer's Lust for a Vampire being the sequel to The Vampire Lovers starring Ingrid Pitt as Mircalla. The original film was an adaptation of Carmilla by Joseph Sheridan Le Fanu, however this film shared little with the novel and only used the vampire characters, and was thus a completely new story, with the semi-lesbian Carmilla infiltrating an all-girl boarding school while falling in love with a novelist.
Yutte left acting in 1972, went to live in the U.S. and had a son called Sten. She became a devoted Christian and for years worked at a radio station, selling air time and refusing to discuss her acting career. She was tracked down by a Danish horror fan, Nicolas Barbano, eventually agreed to an interview (which appeared in Video Watchdog), and soon after was guest of honor at a horror convention, but it is unknown whether she will attend any more.