Joe Dennison
Marline Miller
Inspector Hector 'Mac' McClaren
Thompson Blake
Yeo
Hunziger
Hoxie
Sgt. Smith (as Ann Gudrun)
Dr. Eric Miller (as Paul Hardmuth)
Castle
Lascelles
Policeman (uncredited)
Police Chemist (uncredited)
Martin - Police Informer (uncredited)
Mickey Sweeney (uncredited)
Diamond Laboratory Technician (uncredited)
P.C. with Taxi Driver (uncredited)
Commander Gilles (uncredited)
Restaurant Patron (uncredited)
Dr. Cully (uncredited)
First Fox & Hounds Detective (uncredited)
Police Sgt. Hunter (uncredited)
Radio Sergeant (uncredited)
Police Sgt. Graves - 3rd Fox & Hounds Detective (uncredited)
Paul Hawkins (uncredited)
Taxi Driver (uncredited)
Police Constable in Blake's Flat (uncredited)
Mr. Pritchard (uncredited)
Police Informer (uncredited)
Third Fox & Hounds Driver (uncredited)
Springwell Police Sergeant (uncredited)
First Fox & Hounds Driver (uncredited)
Blake's Manservant (uncredited)
Sir Stafford Beach (uncredited)
Jaguar Driver (uncredited)
Beach Patrol (uncredited)
Mrs. Sayer - Marline's Housekeeper (uncredited)
Ballistics Technician (uncredited)
2nd Fox & Hounds Detective (uncredited)
Sam - Fingerprint Technician (uncredited)
Sailor on Tomaszov (uncredited)