Fay Compton character Agnes Russell
George Cole character Herbert Russell
Guy Middleton character Simon Russell
Alastair Sim character Capt. Denison Russell
Eleanor Summerfield character Sheila Wilcott
Beatrice Campbell character Lucille Grayson
Veronica Hurst character Joan Webb
Joyce Grenfell character Elizabeth Robson
A.E. Matthews character Justice Sir Charles Robson
John Laurie character Gordon Webb
Mary Germaine character Susan Heath
Mackenzie Ward character Arthur Benson, butler
Ernest Thesiger character Executor Endicott
Anthony Steel character Roger Godfrey
Charlotte Mitchell character Ethel, the maid
Leslie Dwyer character Police Sergeant
Colin Gordon character Harry - Station Constable
Ronald Adam character Mr. Wagstaffe - Bank Manager (as Ronald Adams)
Michael Pertwee character Mr. Stewart
Hugh Griffith character Henry Augustus Russell
Audrey Hepburn character Cigarette Girl
Sebastian Cabot character Card Player Smoking Cigar
Martin Boddey character Store Shopwalker
Noel Howlett character Clerk of the Court
Lyn Evans character Jailer
Frank Hawkins character Store Detective
Ian Fleming character Doctor
John Sharp character Constable Cafferty, in alley
John Boxer character Constable Charles Baker, outside jewellry shop
