Mr. Purdy
Frank
Inspector Archer
Geoffrey Sands
Sir Digby Bunce
Inspector Miller
Lieutenant Dicky Lascelles
John Grey
Dr. Bendix
Police Superintendant
Howard Russell
Bert Grummett
Geoffrey Whitcomb
Hal Aylwin
Lt. Dicky Lascelles
Sir Richard Furze
Inspector
Lt Cmdr. Good
Ernest Bliss
John Gray
Bill
Henry Duhan
Mr. Cotterill (uncredited)
Police Official
Billie
Undetermined role
Duke of Heverel
Church Warden
Man in the Shelter
Fox Talbot's Butler
Edgar King
Coroner
Major
The Poet
Phillip Brewster