Land of the Giants is a one-hour American science fiction television series that aired on ABC for two seasons, beginning on September 22, 1968, and ending on March 22, 1970. The show was created and produced by Irwin Allen. Land of the Giants was Allen's fourth science-fiction TV series. The show was released by 20th Century Fox Television. The series was filmed entirely in color and ran for 51 episodes. The show starred Gary Conway and special guest star Kurt Kasznar.

John Carradine was an American actor, considered one of the greatest character actors in American cinema. He was a member of Cecil B. DeMille's stock company and later John Ford's company, known for his roles in horror films, Westerns, and Shakespearean theater, most notably portraying Count Dracula in House of Frankenstein (1944), House of Dracula (1945), Billy the Kid Versus Dracula (1966), and Nocturna: Granddaughter of Dracula (1979). Among his other notable roles was “Preacher Casy” in John Ford’s The Grapes of Wrath. In later decades of his career, he starred mostly in low-budget B-movies. In total, he holds 351 film and television credits, making him one of the most prolific English-speaking film and television actors of all time.