Paul Stevens

Doctor Allan Barnes

Claudette Nevins

Pam Albright

Anne Collings

Miss Goodrich

Bill Walker

Lieutenant Martin

Martin Lavut

Michael Radin

Leo Leyden

Doctor Soames

Norman Ettlinger

Professor Quincey

W.B. Brydon

Anderson (as Bill Bryden)

Jim Moran

Jim Moran

Eleanor Beecroft

Mrs. Kelly

Ray Lawlor

Lab Technician

Rudi Linschoten

Mime in Nightmare

Stephen Ker Appleby

Museum Guide (as Steven Appleby)

Alfie Scopp

Paul Elsom

Harry Blackstone

Self (in introduction added to video version) (uncredited)

Nancy Island

Girl Who Is Killed (uncredited)

Paul Nevens

Demon of the Mask (uncredited)

Stephen Timar

Editor

Herbert S. Alpert

Director of Photography

Julian Roffman

Producer

David R. Ballou

Art Direction

Julian Roffman

Director

Nat Taylor

Producer

Louis Applebaum

Original Music Composer

Frank Taubes

Screenplay

Sandy Haver

Screenplay

Franklin Delessert

Screenplay

Myron Schaeffer

Music

Yvonne Taylor

Associate Producer

Don Gillies

Choreographer

Jean S. Lenauer

Production Consultant

Louis Applebaum

Conductor

Sandy Haver

Associate Producer

Frank Taubes

Associate Producer

Hugo Wuethrich

Assistant Art Director

William S. Owens

Production Manager

Willard W. Goodman

Sound

Dick Vorisek

Sound Recordist

Beaver-Champion Attractions

US

Taylor Roffman Productions

CA