Smashing the Spy Ring
John Baxter
Eleanor Dunlap
Ted Hall
Dr. L.B. Carter
Madelon Martin
Phil Dunlap
Colonel Scully
Johnson
Mason
Mrs. Baxter
Nurse Anna Loring
Williams (uncredited)
Mrs. Austin (uncredited)
Schuster aka Quirk (uncredited)
Workman (uncredited)
Spy Henchman
Madelon's Maid (uncredited)
Doctor (uncredited)
Jordan (uncredited)
Radio Commentator (uncredited)
Casey (uncredited)
Operator (uncredited)
Vendor (uncredited)
Professor Leonard (uncredited)
