Jane Hylton
— Diana Taylor
Duncan Lamont
— Jack Taylor
Donald Gray
— Jimmy Thompson
Meredith Edwards
— Bob Edwards
Cyril Smith
— Alf Quinney
Irene Handl
— Mrs. Raymond
Hugo Schuster
— Hartl
Kynaston Reeves
— Pathologist
Hugh Moxey
— Assistant Commissioner
Tony Hilton
— Tubby
Stanley Vilven
— Attwood
Hamilton Keene
— Fire Officer (as Hamilton Keane)
Gwen Bacon
— Mrs. Thompson
Charlie Bird
— Police Sergeant (uncredited)
Stratford Johns
— 2nd Fireman (uncredited)
Arthur Lovegrove
— 1st Fireman (uncredited)
Jack May
— Man Being Interviewed by Detective (uncredited)
Jack Taylor
— Detective Sergeant Dutton (uncredited)
John H. Watson
— Police Constable (uncredited)
Neil Wilson
— Landlord (uncredited)