Burt Mustin (February 8, 1884 – January 28, 1977) was an American character actor. Over the course of his career, Mustin appeared in over 150 film and television productions. He also worked in radio and appeared in stage productions. Mustin began his professional acting career at the age of 67 after director William Wyler cast him in the 1951 film noir Detective Story. Known for his dependability and versatility, Mustin would go on to establish a career as a well-known character actor.