William Lucas (born William Clucas, 14 April 1925) is a British film and television actor. His first acting role was in the film Portrait of Alison (1955), and later appeared in many Hammer Film Productions such as The Shadow of the Cat. He is probably best known for his role in The Adventures of Black Beauty (1972–74) as Dr. James Gordon and as Inspector Lestrade in Sherlock Holmes (BBC 1968).