Cast: Kenneth Tobey (Pete Mathews); Faith Domergue (Lesley Joyce); Donald Curtis (Prof. John Carter); Ian Keith (Admiral Burns); Dean Maddox Jr. (Admiral Norman); Chuck Griffiths (Griff); Harry Lauter (Deputy Bill Nash); Richard W. Peterson (Captain Stacy); Del Courtney (Asst. Secy. Robert David Chase); Tol Avery (Navy Intern); Ray Storey (Reporter); Rudy Puteska (Hall); Jack Littlefield (Aston); Ed Fisher (McLeod); Jules Irving (King)

Producer: Charles H. Schneer; Director: Robert Gordon; Screenplay: George Worthington Yates, Hal Smith; (Story by George Worthington Yates); Technical Effects: Ray Harryhausen; Art Director: Paul Palmentola; Director Of Photography: Henry Freulich; Film Editor: Jerome Thoms; Sound: Josh Westmoreland; Musical Score: Mischa Bakaleinikoff; Assistant Director: Leonard Katzman; Special Effects: Jack Erickson; Set Decorator: Sidney Clifford; Executive Producer: Sam Katzman; Unit Manager: Leon Chooluck.

| CAST AND CREDITS | SYNOPSIS | BEHIND THE SCENES |
|  POSTERS | STILLS | SOUNDS |
IT CAME FROM BENEATH THE SEA STORE