[1] She is known for her role as Lady Frances Brandon, Lady Jane Grey's mother, in the 1986 film Lady Jane, as well as for providing the voice of Kreia in Star Wars Knights of the Old Republic II: The Sith Lords.

[5] In 1994, she won a Laurence Olivier Theatre Award for her performance as Fraulein Schneider in Cabaret in the London revival of the show.

Kestelman joined the latter in 1968 but left in 1973 when she had her first film role in Zardoz.

[citation needed] Kestelman wrote a book of poetry, A Two Hander, with Susan Penhaligon.

[6] She voiced the character Kreia in the video game Star Wars: Knights of the Old Republic II: The Sith Lords.