The Secret

Sam Wanamaker

Nick Delaney

Mandy Miller

Katie Martin

André Morell

Chief Inspector Blake

Marian Spencer

Aunt Doris Porter

Jan Miller

Margaret O'Neill

Richard O'Sullivan

John Martin

Wyndham Goldie

Doctor Scott

Henry Caine

Superintendent

Aimée Delamain

Miss Lyons

John Miller

Toy Shop Assistant