Don Stewart

Department: Crew
Job: Special Effects

Don L. Cash

Department: Costume & Make-Up
Job: Makeup Artist

Theobold Holsop

Department: Art
Job: Production Design

Betty Sinclair

Department: Production
Job: Production Manager

Karl Struss

Department: Camera
Job: Director of Photography

Mike Matney

Department: Production
Job: Production Manager

Ferde Grofé Sr

Department: Sound
Job: Original Music Composer

Harry Gerstad

Department: Editing
Job: Editor

Kurt Neumann

Department: Writing
Job: Writer

Tom Lambert

Department: Sound
Job: Sound Engineer

Kurt Neumann

Department: Directing
Job: Director

Kurt Neumann

Department: Production
Job: Producer

Orville H. Hamp

Department: Writing
Job: Dialogue

Lou Asher

Department: Crew
Job: Property Master

Clarence Steens

Department: Art
Job: Set Decoration

Frank Heath

Department: Crew
Job: Second Unit Cinematographer

Frank Heath

Department: Directing
Job: Assistant Director

Murray Lerner

Department: Production
Job: Executive Producer

Lloyd Bridges

Colonel Floyd Graham

Osa Massen

Dr. Lisa Van Horn

John Emery

Dr. Karl Eckstrom

Noah Beery Jr.

Major William Corrigan

Hugh O'Brian

Harry Chamberlain

Morris Ankrum

Dr. Ralph Fleming

Patrick Aherne

Reporter #1

Sherry Moreland

Martian girl

John Dutra

Physician

Kathy Marlowe

Reporter

Tom Coleman

Reporter (uncredited)

James Conaty

Doctor Taking Lisa's Blood Pressure (uncredited)

Sam Harris

Reporter at Press Briefing (uncredited)

Judd Holdren

Reporter #3 (uncredited)

Stuart Holmes

Reporter (uncredited)

Barry Norton

Reporter (uncredited)

Cosmo Sardo

Reporter (uncredited)

Bert Stevens

Reporter (uncredited)