She has appeared in television series such as Special Branch, Minder, Boon, The Detectives, Footballers' Wives, To the Manor Born, One Foot in the Grave, Casualty, Space: 1999, Return of the Saint, Robin Of Sherwood, the Doctor Who serial Resurrection of the Daleks (in the 1970s, Lenska made it to the final five actresses short-listed for the role of companion Jo Grant), Doctors and EastEnders, in which she played Frank Butcher's girlfriend, Krystle, in a 2002 Costa del Sol special. She played Mrs. Peacock in series 2 of Cluedo. She also starred with John Inman in the short-lived (six episodes were screened) 1981 series Take a Letter, Mr. Jones, with Lenska as an executive and Inman as her secretary. In 2003, she starred in the black comedy Paradise Grove. She was also featured prominently in the popular 1981 series Private Schulz.