The Deep Six is a 1958 Warner Bros. World War II drama film directed by Rudolph Maté, loosely based on a novel of the same name by Martin Dibner. The story depicts the conflicts of a naval officer in combat with his shipmates and conscience over values instilled in him by his Quaker upbringing. The film stars Alan Ladd, who co-produced it, William Bendix, Dianne Foster, Keenan Wynn, James Whitmore, and Efrem Zimbalist Jr.. It also marked the film debut of Joey Bishop.