Lawrence Davidson
From Tardis Wiki, the free Doctor Who reference
Lawrence Davidson (7 April 1927-14 October 2000[1]) played the Draconian First Secretary in the Doctor Who television story Frontier in Space.
Due to one of the cast credit slides for episode one being inadvertently reused for episode two, he was unintentionally uncredited on-screen, but was credited in that week's issue of Radio Times.