"Bill Solves an Exciting Mystery and Wins a New Sweetheart!"
A decoding expert tangles with enemy spies.
William K. HowardDirector
Lt. William 'Bill' Gordon / Anson Meridan
Joel Carter
Olivia Karloff
Maj. William Brennan
Capt. Nicholas 'Nikki' Nieterstein
John Carter, Assistant Secretary of War
Russian Ambassador Gregory
Dr. R.A. Jackson
Prof. Martin
Roberts
G-Man
Secretary of War Baker
de Segroff
Mrs. Hendricks (uncredited)
Lady Cavendish (uncredited)
Agent Patrick O'Reilly (uncredited)
Bobbie Burns (uncredited)
Chaplain (uncredited)
De Segroff's Associate (uncredited)
Carter's Aide (uncredited)
Desk Clerk Assistant (uncredited)
Recruiter (uncredited)
Jackson's Assistant (uncredited)
1st Military Policeman (uncredited)
2st Military Policeman (uncredited)
German Torpedo Man (uncredited)
Taxi Driver (uncredited)
Hotel Desk Clerk (uncredited)
Country Boy (uncredited)
Doorman (uncredited)
Radio Operator (uncredited)
Colonel Petroff (uncredited)
Gardner (uncredited)
2nd Lieutenant (uncredited)
Customs Officer in Mexico (uncredited)
Mexican (uncredited)
Decoder (uncredited)
Orderly (uncredited)
Sailor (uncredited)
Partitioner (uncredited)
Carter's Receptionist (uncredited)
Code Room Clerk (uncredited)
Man in Code Room (uncredited)
Cashier (uncredited)
German-Speaking Bellhop (uncredited)
Boris Stronskoff - Russian Singer (uncredited)
Café Doorman (uncredited)
Officer (uncredited)
G-Man (uncredited)
Kaieneff (uncredited)
Ship's Captain (uncredited)
Diplomat (uncredited)
Tailor (uncredited)
Private (uncredited)
Sergeant (uncredited)
Army Officer (uncredited)
Butler (uncredited)
Pvt. Dean (uncredited)
Red Cross Nurse (uncredited)
Kesterman (uncredited)
Telegrapher (uncredited)
Barber (uncredited)
Drug Store Clerk (uncredited)
