Donald Knight was an English-born film, television, and stage actor. He worked largely in the United States, and often played tough guys.
In 1965, he moved to California to pursue acting, and was primarily a character actor, making numerous guest appearances in television series such as Combat!, The Time Tunnel, Bewitched, Hogan's Heroes, The Big Valley, Hawaii Five-O, It Takes a Thief, Bonanza, Mannix, Mission: Impossible, Columbo, Banacek, Night Gallery, Cannon, Kojak, Little House on the Prairie, and Barnaby Jones, as well as semi-regular roles in series such as The Immortal.
In 1976, he was in the Disney film Treasure of Matecumbe. His character was Skaggs.
