Cast
- Walter Pidgeon
- Dr. Edward Morbius
- Anne Francis
- Alta Morbius
- Leslie Nielsen
- Commander John J. Adams
- Warren Stevens
- Lt. "Doc" Ostrow
- Jack Kelly
- Lt. Farman
- Richard Anderson
- Chief Quinn
- Earl Holliman
- Cook
- George Wallace
- Bosun
- Bob Dix
- Grey
- Jimmy Thompson
- Youngerford
- James Drury
- Joe Strong
- Harry Harvey, Jr.
- Randall
- Roger McGee
- Lindstrom
- Peter Miller
- Moran
- Morgan Jones
- Nichols
- Richard Grant
- Silvers
- Robby the Robot
- Frankie Darro
- Robby the Robot
- Marvin Miller
- Robby
- James Best
- Crewman
- William Boyett
- Crewman
- Les Tremayne
- Narrator
Crew
- Fred McLeod Wilcox
- Director
- Allen Adler
- Screen Story
- Arnold A. Gillespie
- Special Effects
- Arthur Lonergan
- Art Director
- Bebe Barron
- Composer (Music Score)
- Cedric Gibbons
- Art Director
- Cyril Hume
- Screenwriter
- Edwin B. Willis
- Set Designer
- Ferris Webster
- Editor
- George Folsey
- Cinematographer
- George Rhein
- First Assistant Director
- Helen Rose
- Costume Designer
- Hugh Hunt
- Set Designer
- Irving A. Block
- Screen Story
- Irving G. Ries
- Special Effects
- Joshua Meador
- Special Effects
- Louis Barron
- Composer (Music Score)
- Nicholas Nayfack
- Producer
- Walter Plunkett
- Costume Designer
- Warren Newcombe
- Special Effects
- William J. Tuttle
- Makeup
- William Shakespeare
- Play Author