Walter Slezak was an Austrian-born film and stage actor active between 1922 and 1976. He mainly appeared in German films before migrating to the United States in 1930 and performing in numerous Hollywood productions.

Lifeboat is a 1944 American survival film directed by Alfred Hitchcock from a story by John Steinbeck. It stars Tallulah Bankhead and William Bendix, alongside Walter Slezak, Mary Anderson, John Hodiak, Henry Hull, Heather Angel, Hume Cronyn and Canada Lee. The film is set entirely on a lifeboat launched from a passenger vessel torpedoed and sunk by a Nazi U-boat.