Credits
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)
Art
Boris Leven
Art Direction
Edward G. Boyle
Set Dresser
Camera
John F. Seitz
Director of Photography
Costume & Make-Up
Ruby Felker
Hairstylist
Gene Hibbs
Makeup Artist
Anatole Robbins
Special Effects Makeup Artist
Directing
William Cameron Menzies
Director, Production Design
Mary Yerke
Script Supervisor
Leonard Kunody
Second Assistant Director
Editing
Arthur Roberts
Editor
Production
Edward L. Alperson Jr.
Associate Producer
Edward L. Alperson
Producer
Ben Chapman
Production Manager, Assistant Director
Sound
Raoul Kraushaar
Original Music Composer
Earl Crain Sr.
Sound
Visual Effects
Irving Block
Matte Painter
Jack Rabin
Matte Painter
Howard Lydecker
Mechanical & Creature Designer
Jack Cosgrove
Visual Effects, Special Effects
Writing
Richard Blake
Screenplay
John Tucker Battle
Story