Maureen O'Brien is a British actress and novelist. She is perhaps most famous for her role as Vicki, the companion to William Hartnell's First Doctor in Doctor Who, becoming the first change to the original cast line up in 1965. She also played Elizabeth Straker in the second series of the long running BBC drama Casualty in 1987.
Maureen O'Brien has 36 screen credits in a career dating back to 1963. Signature works include Doctor Who: The Storyteller, Maureen O'Brien: In Conversation, Doctor Who: Galaxy 4. Explore the interactive character relationship maps on each title page to trace how their roles connect across franchises.
