Mysterious Intruder

Richard Dix

Don Gale

Barton MacLane

Detective Taggart

Nina Vale

Joan Hill, Gale's Secretary

Regis Toomey

James Summers

Helen Mowery

Freda Hanson

Mike Mazurki

Harry Pontos

Pamela Blake

Elora Lund

Charles Lane

Detective Burns

Paul E. Burns

Edward Stillwell

Kathleen Howard

Rose Denning

Harlan Briggs

Mr. Brown

Jessie Arnold

Woman in Window (Uncredited)

William Castle

Director

Directing

Carl Hiecke

Assistant Director

Directing

Eric Taylor

Story

Writing

Eric Taylor

Screenplay

Writing

Rudolph C. Flothow

Producer

Production

Juanita L. Bell

Researcher

Production

Jack Haynes

Sound

J.S. Westmoreland

Sound Mixer

Sound

George Duning

Original Music Composer

Sound

Mischa Bakaleinikoff

Music Director

Sound

Wilbur Hatch

Original Music Composer

Sound

Philip Tannura

Director of Photography

Camera