Eric Portman

Victor James Colebrooke

Dulcie Gray

Anne Fielding

Derek Farr

Jack Williams

Roland Culver

Chief Inspector Conway

Stanley Holloway

Sergeant Sullivan

Barbara Everest

Mrs Colebrooke

Bonar Colleano

Corporal Nick Mappolo

Jenny Laird

Jeannie McLaren

Kathleen Harrison

Florrie

Bill Shine

Detective Ellis

Viola Lyel

Mabel Cooper

John Salew

Detective Walters

John Ruddock

Glover

George Carney

Boat Rental Agent

Mary Mackenzie

Girl at Fair

Wilfrid Hyde-White

Guide in Madame Tussaud's

Moira Lister

Miss Willis

Frank Atkinson

Chip Shop Customer

Marie Ault

Flower Seller

Beatrice Campbell

Muriel

Howard Douglas

Head Park Keeper

Johnnie Schofield

Chip Shop Owner

Harry Terry

Park Keeper