Mamie Van Doren

Nora Hall

Anthony Eisley

Lt. Charles Brown

Billy Gray

CPO Fred Twining

Bobby Van

Ens. Rutherford Chandler

Pamela Mason

Marie - Scientist

Walter Sande

Dr. Arthur Beecham

Edward Faulkner

Bob Spaulding

Phillip Terry

Base Doctor

David Brandon

Kaye Elhardt

Diane

Michael A. Hoey

director, writer

Murray Leinster

writer

George Edwards

producer

Gordon Zahler

composer

Stanley Cortez

cinematographer

George White

editor

Ross Brown

casting director