Maureen O'Brien an English actress and author best known for playing the role of Vicki in the BBC science fiction television seriesDoctor Who, although she has appeared in many other television programmes as well.
She played the part of Vicki in 38 episodes of Doctor Who from 2 January to 6 November 1965, starring alongside the original Doctor, William Hartnell. Over 40 years later, she reprised the role in one of the Big Finish Productions Doctor Who audio plays.
She played unit general manager Elizabeth Straker in the second season of Casualty (1987). She has made numerous guest appearances in The Duchess of Duke Street ("Trouble and Strife"),Taggart ("Forbidden Fruit"), Cracker ("The Big Crunch"), A Touch of Frost ("Private Lives") and Heartbeat. She appeared also in an early episode of Jonathan Creek.
O'Brien has also written a number of detective novels includingClose-Up on Death (1989), Deadly Reflection (1993), Mask of Betrayal (1998), Dead Innocent (1999), Revenge (2001) andUnauthorised Departure (2003); all featuring the character of Detective Inspector John Bright. IMDB