Edward G. Robinson

Professor Richard Wanley

Joan Bennett

Alice Reed

Raymond Massey

Dist. Attorney Frank Lalor

Edmund Breon

Dr. Michael Barkstane

Dan Duryea

Heidt / Tim, the Doorman

Thomas E. Jackson

Inspector Jackson

George McFarland

Boy Scout who finds Mazard's Body (uncredited)

Robert Blake

Dickie Wanley (uncredited)

Arthur Loft

Claude Mazard / Frank Howard / Charlie the Hatcheck Man

Frances Morris

Stenographer (uncredited)

Iris Adrian

Streetwalker (uncredited)

Paul Bradley

Man at Club (uncredited)

Harold Minjir

Man at Club (uncredited)

Louis Payne

Man at Club (uncredited)

Scott Seaton

Man at Club (uncredited)

Wyndham Standing

Man at Club (uncredited)

Larry Steers

Man at Club (uncredited)

Don Brodie

Onlooker at Gallery (uncredited)

Frank Melton

Onlooker at Gallery (uncredited)

Claire Carleton

Blonde (uncredited)

Tom Dillon

Police Officer Dillon (uncredited)

Alec Craig

Garage Man (uncredited)

Joe Devlin

Toll Collector on Henry Hudson Parkway (uncredited)

Ralph Dunn

Traffic Cop (uncredited)

Bess Flowers

Bar Patron (uncredited)

Jack Gargan

Club Steward (uncredited)

James Harrison

Club Steward (uncredited)

Fred Graham

Motorcycle Cop (uncredited)

Harry Hayden

Pharmacist (uncredited)

Donald Kerr

First Elevator Operator (uncredited)

Frank McLure

Elevator Operator (uncredited)

Frank Mills

Charlie the Garage Helper (uncredited)

Anne O'Neal

Mother by Elevator (uncredited)

Fred Rapport

Club Manager (uncredited)

Alexander Pollard

William the Headwaiter (uncredited)

Arthur Space

Captain Kennedy (uncredited)