Gerald Mohr

Col. Thomas O`Bannion

Naura Hayden

Dr. Iris Ryan

Les Tremayne

Prof. Theodore Gettell

Jack Kruschen

CWO Sam Jacobs

Paul Hahn

Maj. Gen. George Treeger

J. Edward McKinley

Prof. Paul Weiner

Tom Daly

Dr. Frank Gordon

Don Lamond

TV Newscaster / Narrator / Martian (voice)

Edward Innes

Brig. Gen. Alan Prescott

Gordon Barnes

Maj. Lyman Ross

Jack Haddock

Lt. Col. Davis

Brandy Bryan

Nurse Hayes

Joan Fitzpatrick

Nurse Dixon

Duke Norton

Dr. Muller

William Remick

Dr. Hawley

David De Haven

Air Force News Photographer

Arline Hunter

Joan

Alean 'Bambi' Hamilton

Joan's Friend

Fred Ross

Air Force News Photographer

Paul Dunlap

Original Music Composer

Stanley Cortez

Director of Photography

Ib Melchior

Screenplay

Ib Melchior

Director

Sidney W. Pink

Screenplay

Sidney W. Pink

Producer

Ivan J. Hoffman

Editor

Sidney W. Pink

Story

Norman Maurer

Producer

Norman Maurer

Production Design

Lou Perlof

Associate Producer

Roger Mace

Still Photographer

Mel Sternlight

Property Master

Arthur Wasson

Property Master

Lillian Shore

Hairstylist

Herman E. Townsley

Special Effects

Robert Johannes

Camera Operator

Victor B. Appel

Sound Mixer

Hazel W. Hall

Script Supervisor

David Newell

Makeup Artist

Bert Eason

Assistant Camera