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)