Steve Smith ("Whispering Smith")

Richard Carlson

Anne Carter

Rona Anderson

Reporter

Stanley Baker

Parker

Laurence Naismith

Miss La Fosse

Dora Bryan

Louise Balfort

Greta Gynt

Roger Ford

Herbert Lom

Hector Reith

Alan Wheatley

Insp. Dave Meeker

James Raglan

Dr. Taren

Daniel Wherry

Cecil

Danny Green

Manson

Reginald Beckwith

Hotel Desk Clerk

Michael Ward

Story

John Gilling

Director

Francis Searle

Characters

Frank H. Spearman

Screenplay

Steve Fisher

Editor

James Needs