Who: Before And After #7
Name: Jeremy Young
Year(s): 1963 / 1965
Stories: An Unearthly Child Episode 2: The Cave Of Skulls - An Unearthly Child Episode 4: The Firemaker / Mission To The Unknown
Character(s): Kal / Gordon Lowery
Note: Between 1961 - 1976, he was married to Kate O'Mara. Therefore, he has the distinction of being the first actor to portray a villain in Doctor Who, who (in real life) was wed to another person who played a prominent villain on the show.
Before Who:
Films - The Haunted Strangler* (1958), The Wild and the Willing (1962)
Television - Armchair Theatre, Deadline Midnight, Z-Cars, Suspense, Ghost Squad, Maupassant, BBC Sunday-Night Play
After Who:
Films - A Hard Days Night (1964), Rasputin the Mad Monk (1966), Crooks and Coronets (1969), Eyewitness (1970), Frenzy* (1972), Hopscotch (1980), Photographing Fairies (1997), A Dead End Story (2003)
Television - Comedy Playhouse, Cluff, Crossroads, The Indian Tales of Rudyard Kipling, The Villains, No Hiding Place, R3, A Slight Case of..., Court Martial: Adam Adamant Lives!, The Wednesday Play, The Three Musketeers, The Avengers [A Touch of Brimstone'], The Saint, Thirty-Minute Theatre, The Fellows: The Further Adventures of the Musketeers, Sir Arthur Conan Doyle: Out of Town Theatre, The Revenue Men. Softly, Softly, Department S, Canterbury Tales, Dixon of Dock Green, Parkin's Patch, Softly, Softly: Taskforce, Randall and Hopkirk (Deceased), Up Pompeii!, Doomwatch, Trial, Coronation Street, The Onedin Line, Frankenstein: The True Story, The Sweeney, Killers, The New Avengers, The Velvet Glove, Space: 1999, Van der Valk, Destination: Moonbase Alpha, Romeo & Juliet, Dick Barton: Special Agent, Cribb, The Further Adventures of Oliver Twist, Minder, The Professionals, On the Line, The Tripods, Scarecrow and Mrs. King, Brat Farrar, A Very British Coup, Rockliffe's Babies, EastEnders, Agatha Christie's Poirot, Taggart, Perfect Scoundrels, Covington Cross, The Bill, The Scarlet and the Black, Cadfael, Picking up the Pieces, Murder in Mind, The Debt