Cast (13)

Roy Barcroft

The Purple Monster

Dennis Moore

Craig Foster

Linda Stirling

Sheila Layton

James Craven

Dr. Cyrus Layton

Bud Geary

Hodge Garrett

Mary Moore

Marcia

John Davidson

Emperor of Mars

Joe Whitehead

Carl Stewart

Emmett Vogan

Saunders

George M. Carleton

Dr. Paul Meredith

Kenne Duncan

Charles Mitchell

Rosemonde James

Helen

Monte Hale

Dr. Harvey

Crew (28)

Spencer Gordon Bennet

Director

Fred C. Brannon

Director

Theodore Lydecker

Special Effects

Lynn Perkins

Screenplay

Joseph F. Poland

Screenplay

Ronald Davidson

Producer

Tom Steele

Stunts

Dale Van Sickel

Stunts

Fred Graham

Stunts

Bob Mark

Makeup Artist

Barney A. Sarecky

Screenplay

Harold Minter

Editor

Bud Geary

Stunts

Carey Loftin

Stunts

Babe DeFreest

Stunts

Royal K. Cole

Screenplay

Polly Burson

Stunts

Cliff Lyons

Stunts

Albert DeMond

Screenplay

Henry Wills

Stunts

Basil Dickey

Screenplay

John Daheim

Stunts

Cliff Bell Sr.

Editor

Howard Lydecker

Special Effects

Mort Glickman

Original Music Composer

Bud Thackery

Director of Photography

Ed Borschell

Sound

Richard Cherwin

Music Director