Cast

Roy Barcroft

The Purple Monster

James Craven

Dr. Cygnus Layton

Dennis Moore

Craig Foster

Linda Stirling

Sheila Layton

Bud Geary

Hodge Garrett

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Joe Whitehead

Stewart

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Fred Howard

Prof. Crandal

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Rosemonde James

Helen

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Mary Moore

Marcia

John Davidson

Emperor of Mars

Crew

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Ronald Davidson

Producer (Production)

Spencer Gordon Bennet

Director (Directing)

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Marlin Skiles

Original Music Composer (Sound)

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Fred C. Brannon

Director (Directing)

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Lynn Perkins

Screenplay (Writing)

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Barney A. Sarecky

Screenplay (Writing)

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Basil Dickey

Screenplay (Writing)

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Albert DeMond

Screenplay (Writing)

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Milton Rosen

Original Music Composer (Sound)

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Royal K. Cole

Screenplay (Writing)