Geoffrey Leavitt
Donald Sinden
Meg Elgin
Muriel Pavlow
Tom Gripper
Sam Kydd
Crutches
Kenneth Griffith
Walter "Duds" Morrison
Gerald Harper
Detective Sergeant Pickett
Wensley Pithey
Uncle
Stanley Rose
Police Constable
Stratford Johns
Copper
Percy Herbert
Mrs. Mary Talisman
Hilda Barry
Trumps
Brian Wilde
(uncredited)
Violet Gould
Jack Havoc (aka Johnny Cash)
Tony Wright
Marianne Stone
Detective (uncredited)
Victor Brooks
Howard Lang
Stall Attendant (uncredited)
Dandy Nichols
Police Doctor (uncredited)
Philip Ray
Tiddy Doll the Gang Leader
Bernard Miles
Lucy Cash
Beatrice Varley
Asst. Commissioner Oates
Alec Clunes
Canon Avril
Laurence Naismith
Chief Inspector Luke
Christopher Rhodes
Will
Charles Victor
Rolly Gripper
Thomas Heathcote
Director
Roy Ward Baker
Screenplay
Anthony Pelissier
Novel
Margery Allingham
Clapper Loader
Mike Fox