"Three men gamble their lives in space to change the history of the world"
William Lundigan
as Dr. Richard Donald Stanton
Herbert Marshall
as Dr. Donald L. Stanton / Narrator
Richard Carlson
as Dr. Jerry Lockwood
Martha Hyer
as Dr. Jane Flynn
Dawn Addams
as Susan Manners
Robert Karnes
as Walter Gordon
Lawrence Dobkin
as Dr. Delmar
George Eldredge
as Dr. Paul Dryden
Dan Riss
as Dr. Frank Werner
Michael Fox
as Dr. Klinger
King Donovan
as James O'Herli
Kem Dibbs
as David Wells
James Best
as Dr. Sidney K. Fuller
Curt Siodmak
Screenplay
Director
Ivan Tors
Producer
Stanley Cortez
Director of Photography
Victor A. Gangelin
Set Decoration
Herbert L. Strock
Associate Producer
Jerome Pycha Jr.
Art Direction
Louis Phillipi
Makeup Artist
Harry Sukman
Original Music Composer
Editor
Story
