Lynda Baron
From Tardis Wiki, the free Doctor Who reference
Lynda Baron (born 24th March 1942) played Captain Wrack in the Doctor Who serial Enlightenment. Years earlier, in 1966, Baron recorded the original song "The Ballad of the Last Chance Saloon" for the soundtrack of the serial, The Gunfighters. She had two stints in the BBC show EastEnders.
She is also appearing in series 6 of Doctor Who as a character named Val, the episode will also feature Cybermen.
External links
http://www.imdb.com/name/nm0056271/