Cmdr. Robert Brennan
Supt. Alec Folland
Jimmy Ellis
Maj. John Elliott
Anna Braun
Mrs. Ellis
Grant Mansfield
Morgan Williams
Michael Stringer
George Ellis
Mrs. Bowers
Sir James - Commissioner (as R. Stuart Lindsell)
Percy Ward
Reginald Gordon-Wells
Benson - Scotland Yard Man
Slater
Watson - Scotland Yard Man
Miss Laurie Music Club member
Woman in Street (uncredited)
Albert Brewer (uncredited)
Music Club Member (uncredited)
Ship's Radio Operator (uncredited)
(uncredited)
Mrs. Skinner (uncredited)
Anarchist (uncredited)
Pier Superintendant (uncredited)
Man Serving in Cafe (uncredited)
Printer's Assistant (uncredited)
Street Photographer (uncredited)
Mrs. Finch-Harvey - Music Club Member (uncredited)
Police Clerk (uncredited)
Detective (uncredited)
Railway Shunter (uncredited)
Mr. Mathews - Union Rep (uncredited)
Police Inspector (uncredited)
Student Exiting Tutorial College (uncredited)
Announcer at Music Club (uncredited)
Ship's Captain (uncredited)
Sam - Printer (uncredited)
Policeman Discovering Jimmy's Body (uncredited)
Telephone Engineer (uncredited)
Andy - Telephone Engineer (uncredited)
Bit Part (uncredited)
Mr. Philips - Union Rep (uncredited)
Woman Scrubbing Porch Step (uncredited)
Chemistry Lecturer (uncredited)
Power Station Worker (uncredited)
Policeman at Records Office (uncredited)
Man Dining in Cafe (uncredited)
Scottish Police Sergeant (uncredited)
Alfie's Mother (uncredited)
Barman (uncredited)
Inspector Hewitt (uncredited)
Home Secretary (uncredited)
Glass Collector (uncredited)