← El poder
Reparto y equipo completo
Sonido
- Miklós Rózsa — original music composer
Dirección
- Byron Haskin — director
- E. Darrell Hallenbeck — assistant director
Arte
- Don Greenwood Jr. — set decoration
- Henry Grace — set decoration
- Merrill Pye — art direction
- George W. Davis — art direction
Producción
- George Pal — producer
Guion
- Frank M. Robinson — novel
- John Gay — screenplay
Vestuario y maquillaje
- William Tuttle — makeup artist
- Sydney Guilaroff — hairstylist
Reparto
- George Hamilton — Jim Tanner
- Aldo Ray — Bruce
- Suzanne Pleshette — Margery Lansing
- Richard Carlson — N. E. Van Zandt
- Yvonne De Carlo — Sally Hallson
- Earl Holliman — Talbot Scott
- Gary Merrill — Mark Corlane
- Ken Murray — Grover
- Barbara Nichols — Flora
- Arthur O'Connell — Henry Hallson
- Nehemiah Persoff — Carl Melnicker
- Michael Rennie — Arthur Nordlund
- Miiko Taka — Mrs. Van Zandt
- Celia Lovsky — Mrs. Hallson
- Vaughn Taylor — Mr. Hallson
- Lawrence Montaigne — Briggs
- Beverly Powers — Sylvia
- Forrest J. Ackerman — Delegate A.C. Fogbottom (uncredited)
Montaje
- Thomas J. McCarthy — editor
Cámara
- Ellsworth Fredericks — director of photography