Générique complet
Smashing the Spy Ring
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)
