The Black Knight is a 1954 British-American Technicolor adventure film directed by Tay Garnett and starring Alan Ladd as the title character and Peter Cushing and Patrick Troughton as two conspirators attempting to overthrow King Arthur. It is the last of Ladd's trilogy with Warwick Films, the others being The Red Beret and Hell Below Zero based on Hammond Innes' book The White South.

Patrick George Troughton was an English actor best known for his roles in television and film. He played the second incarnation of the Doctor in the long-running British science-fiction television series Doctor Who from 1966 to 1969; he reprised the role in 1972–1973, 1983 and 1985. His other work includes appearances in several fantasy, science fiction and horror productions including The Omen (1976) and The Box of Delights (1984).