Ralph Bellamy

John Baxter

Fay Wray

Eleanor Dunlap

Regis Toomey

Ted Hall

Walter Kingsford

Dr. L.B. Carter

Ann Doran

Madelon Martin

Warren Hull

Phil Dunlap

Forbes Murray

Colonel Scully

John Tyrrell

Johnson

Paul Whitney

Mason

May Wallace

Mrs. Baxter

Lorna Gray

Nurse Anna Loring

Dick Curtis

Williams (uncredited)

Bess Flowers

Mrs. Austin (uncredited)

Byron Foulger

Schuster aka Quirk (uncredited)

Bob Walker

Workman (uncredited)

George Turner

Spy Henchman

Rose Allen

Madelon's Maid (uncredited)

Sam Ash

Doctor (uncredited)

Trevor Bardette

Jordan (uncredited)

Mike Blair

Radio Commentator (uncredited)

Don Brodie

Casey (uncredited)

Ralph Brooks

Operator (uncredited)

Stanley Brown

Vendor (uncredited)

Morgan Conway

Professor Leonard (uncredited)

Beatrice Curtis

Anna (uncredited)

Jack Egan

Reporter (uncredited)

Eddie Fetherston

Cigar Store Proprietor (uncredited)

Robert Fiske

Lieutenant General (uncredited)

Bud Geary

Taxi Driver (uncredited)

Chuck Hamilton

Fireman (uncredited)

Eddie Laughton

Williams (uncredited)

George Magrill

Guard (uncredited)

Philo McCullough

Workman (uncredited)

Walter Merrill

Cameraman (uncredited)

Charles R. Moore

Man Finding Dollar (uncredited)

Joe Palma

Workman (uncredited)

Lee Prather

Major Nichols (uncredited)

Cy Schindell

Richards (uncredited)

Reginald Simpson

Reporter (uncredited)

Harry Strang

Army Pilot (uncredited)

Henry Taylor

Cigar Store Customer (uncredited)