Baron's early television roles included small parts in "Crossroads" (1964), "Up Pompeii" (1970), "Z-Cars" (1971), and the British horror film "Hands of the Ripper" (1971). Baron appeared on television in "BBC-3" (1965), a series in the vein of "That Was The Week That Was", involving some of the same performers. She also alternated with Annie Ross as the resident singer on "Not So Much a Programme, More a Way of Life" (1965). Baron has taken part in the BBC science fiction series "Doctor Who" three times. She was heard as a singer in the 1966 serial "The Gunfighters". She appeared in front of the cameras as Captain Wrack in the 1983 serial "Enlightenment", and again in 2011 in "Closing Time" as Val.