Cast
Jimmy Hunt
David Maclean
Arthur Franz
Dr. Stuart Kelston
Helena Carter
Dr. Pat Blake, MD
Leif Erickson
Mr. George MacLean
Hillary Brooke
Mrs. Mary MacLean
Morris Ankrum
Col. Fielding
Walter Sande
Police Sgt. Mack Finlay
Bert Freed
Police Chief A.C. Barrows
Max Wagner
Army Sgt. Rinaldi
Charles Gibb
Lt. Blair
Milburn Stone
Army Capt. Roth
Douglas Kennedy
Officer Jackson
Charles Cane
Officer Blaine
Fay Baker
Mrs. Wilson
Janine Perreau
Kathy Wilson
John Eldredge
Mr. Turner
Barbara Billingsley
Kelston's Secretary
Richard Deacon
MP
Gil Herman
Major Clary
Luce Potter
The Martian Intelligence
Lock Martin
Mutant Carrying David to 'Intelligence'
Max Palmer
Second Mutant Guarding the "Intelligence"
Todd Karns
Jim the Gas Station Attendant
Frank Wilcox
Pentagon Chief of Staff
Robert Shayne
Dr. William Wilson
William Phipps
Sgt. Baker
William Forrest
Col. Mayberry
Peter Brocco
Brainard (bit)
Crew
William Cameron Menzies
Director
(Directing)
Raoul Kraushaar
Original Music Composer
(Sound)
John F. Seitz
Director of Photography
(Camera)
Arthur Roberts
Editor
(Editing)
Gene Hibbs
Makeup Artist
(Costume & Make-Up)
Edward L. Alperson
Producer
(Production)
Edward L. Alperson Jr.
Associate Producer
(Production)
Boris Leven
Art Direction
(Art)
Richard Blake
Screenplay
(Writing)
Jack Cosgrove
Visual Effects
(Visual Effects)
John Tucker Battle
Story
(Writing)
Ruby Felker
Hairstylist
(Costume & Make-Up)
William Cameron Menzies
Production Design
(Art)
Irving Block
Matte Painter
(Visual Effects)
Edward G. Boyle
Set Dresser
(Art)
Anatole Robbins
Special Effects Makeup Artist
(Costume & Make-Up)
Jack Cosgrove
Special Effects
(Crew)
Mary Yerke
Script Supervisor
(Directing)
Leonard Kunody
Second Assistant Director
(Directing)
Earl Crain Sr.
Sound
(Sound)
Ben Chapman
Production Manager
(Production)
Howard Lydecker
Mechanical & Creature Designer
(Visual Effects)
Ben Chapman
Assistant Director
(Directing)
Jack Rabin
Matte Painter
(Visual Effects)