Ralph Bellamy
Role: John Baxter
Fay Wray
Role: Eleanor Dunlap
Regis Toomey
Role: Ted Hall
Walter Kingsford
Role: Dr. L.B. Carter
Ann Doran
Role: Madelon Martin
Warren Hull
Role: Phil Dunlap
Forbes Murray
Role: Colonel Scully
John Tyrrell
Role: Johnson
May Wallace
Role: Mrs. Baxter
Lorna Gray
Role: Nurse Anna Loring
Dick Curtis
Role: Williams (uncredited)
Bess Flowers
Role: Mrs. Austin (uncredited)
Byron Foulger
Role: Schuster aka Quirk (uncredited)
Bob Walker
Role: Workman (uncredited)
George Turner
Role: Spy Henchman
Rose Allen
Role: Madelon's Maid (uncredited)
Sam Ash
Role: Doctor (uncredited)
Trevor Bardette
Role: Jordan (uncredited)
Mike Blair
Role: Radio Commentator (uncredited)
Don Brodie
Role: Casey (uncredited)
Ralph Brooks
Role: Operator (uncredited)
Stanley Brown
Role: Vendor (uncredited)
Morgan Conway
Role: Professor Leonard (uncredited)
Beatrice Curtis
Role: Anna (uncredited)
Jack Egan
Role: Reporter (uncredited)
Eddie Fetherston
Role: Cigar Store Proprietor (uncredited)
Robert Fiske
Role: Lieutenant General (uncredited)
Bud Geary
Role: Taxi Driver (uncredited)
Chuck Hamilton
Role: Fireman (uncredited)
Eddie Laughton
Role: Williams (uncredited)
George Magrill
Role: Guard (uncredited)
Philo McCullough
Role: Workman (uncredited)
Walter Merrill
Role: Cameraman (uncredited)
Charles R. Moore
Role: Man Finding Dollar (uncredited)
Joe Palma
Role: Workman (uncredited)
Lee Prather
Role: Major Nichols (uncredited)
Cy Schindell
Role: Richards (uncredited)
Reginald Simpson
Role: Reporter (uncredited)
Harry Strang
Role: Army Pilot (uncredited)
Henry Taylor
Role: Cigar Store Customer (uncredited)