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
Harold Berens
— Frank Farmer