Mystery Street

Ricardo Montalban

Peter Moralas

Sally Forrest

Grace Shanway

Bruce Bennett

Dr. McAdoo

Elsa Lanchester

Mrs. Smerrling

Marshall Thompson

Henry Shanway

Jan Sterling

Vivian Heldon

Edmon Ryan

James Joshua Harkley

Betsy Blair

Jackie Elcott

Wally Maher

Tim Sharkey

Ralph Dumke

Jim Black the Tattooist

Willard Waterman

The Mortician

Walter Burke

The Ornithologist

Don Shelton

A District Attorney

Elsie Baker

Elderly Lady (uncredited)

George Brand

Man in Bedroom (uncredited)

Ralph Brooks

Reporter (uncredited)

Douglas Carter

Counterman at The Dunes (uncredited)

Mack Chandler

Doorman (uncredited)

Noble 'Kid' Chissell

Diner Patron (uncredited)

George Cooper

Reporter (uncredited)

John Crawford

Reporter (uncredited)

Lucille Curtis

Mrs. Harkley (uncredited)

Bert Davidson

Dr. Thorpe (uncredited)

King Donovan

Reporter at Beach House (uncredited)

Mike Donovan

Porter (uncredited)

Robert Foulk

Detective O'Hara (uncredited)

Jim Frasher

High School Boy (uncredited)

Ned Glass

Dr. Ben Levy, McAdoo's asst. (uncredited)

Eula Guy

Mrs. Fischer (uncredited)

Sherry Hall

Car Insurance Clerk (uncredited)

Bradford Hatton

Al - Grass Skirt Cafe Bartender (uncredited)

Jim Hayward

Constable Fischer (uncredited)

Perry Ivins

Alienist (uncredited)

William F. Leicester

Doctor (uncredited)

Arthur M. Loew Jr.

Sailor (uncredited)

Louise Lorimer

Mrs. Shanway (uncredited)

John Maxwell

Detective Kilrain (uncredited)

May McAvoy

Nurse (uncredited)

David McMahon

Detective Garrity (uncredited)

Ernesto Molinari

Portuguese Fisherman (uncredited)

Ralph Montgomery

Waiter (uncredited)

Matt Moore

Dr. Rockton (uncredited)

Melvin H. Moore

Oyster Shucker (uncredited)

Virginia Mullen

Neighbor (uncredited)

Allen O'Locklin

Photographer (uncredited)

Frank Overton

Guard (uncredited)

Juanita Quigley

Harkley's Daughter (uncredited)

Suzanne Ridgway

Bar Girl at Grass Skirt Cafe (uncredited)

John Roy

Guard (uncredited)

Maurice Samuels

Tailor (uncredited)

Fred Santley

Pawnbroker (uncredited)

Phil Schumacher

Diner Patron (uncredited)

Jack Shea

Policeman (uncredited)

Fred Sherman

Photographer (uncredited)

George Sherwood

Reporter (uncredited)

Mary Jane Smith

Daughter (uncredited)

Robert Strong

Policeman (uncredited)

Peter M. Thompson

Law Student (uncredited)

Charles Wagenheim

Baggage Clerk (uncredited)

Napoleon Whiting

Red Cap (uncredited)