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

Dorothy Peterson

Mrs. Wanley

George McFarland

Boy Scout who finds Mazard's Body (uncredited)

Robert Blake

Dickie Wanley (uncredited)

Frances Morris

Stenographer (uncredited)

Iris Adrian

Streetwalker (uncredited)

Paul Bradley

Man at Club (uncredited)

James Carlisle

Man at Club (uncredited)

Charles Meakin

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)

Eddy Chandler

Police Driver (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)

Fred Graham

Motorcycle Cop (uncredited)

Tom Hanlon

Radio Announcer (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)

Arthur Space

Captain Kennedy (uncredited)