Derek Deadman

Derek Deadman is a British actor He appeared as Rankin in two episodes of the RAF sitcom Get Some In in 1975 and 1978 He played Ringo in 39 of the 66 episodes of the TV series Never the Twain between 1981 and 1991 and appeared as the barman of The Leaky Cauldron Tom in Harry Potter and the Philosophers Stone He often appears as minor roles in British films He also played a ruthless Sontaran Commander in the Doctor Who serial The Invasion of Time He played the part of Robert in the film Time Bandits