Dr. Leslie Gaskell
Jeff Morrow
Vera Hunter
Barbara Lawrence
Nurse
Marjorie Stapp
Gen. Perry
John Parrish
Air Force Meteorology Sergeant
Don Eitner
Air Force Control Tower Sergeant
Ron Kennedy
Sergeant
Gordon Mills
Manuel's Wife
Rosa Turich
Air Force General
Robert Shayne
Pilot
Richard Harrison
Dr. Arnold Culver
George O'Hanlon
Dr. Hubbell Eliot
John Emery
Dr. Albert Stern
Morris Ankrum
McCrary - The Pickup Driver
Kenneth Alton
Manuel Ramirez
Jose Gonzales-Gonzales
KGTK-TV Newscaster
Robert Forrest
Second Newscaster
Baxter Ward
Lab Central Security Guard
John Halloran
Director
Kurt Neumann
Producer
Makeup Artist
Louis Hippe
Director of Photography
Karl Struss
Screenplay
Lawrence L. Goldman
Story
Irving Block
Executive Producer
E.J. Baumgarten
Louis DeWitt
Jack Rabin
Original Music Composer
Paul Sawtell
Bert Shefter
Editor
Jodie Copelan
Production Design
Theobold Holsopple
Set Decoration
Chester L. Bayhi
Walter M. Scott
Special Effects
Louis de Witt
Menrad von Mulldorfer
William Reinhold
Gene Warren
Sound
James Mobley
Property Master
Max Goldman
Hairstylist
Nadine Denks
Wardrobe Supervisor
Richard Staub
Mary Tate
Production Manager
Herbert E. Mendelson