Jill Adams
— Shirley Harcourt Piper
Eddie Byrne
— Supt. John Harcourt
Lyndon Brook
— Leslie Parrish
John Chandos
— Danvers
Olive Milbourne
— Mrs. Harcourt
Arthur Lowe
— Sam
Doris Gilmore
— Mrs. Danvers
Anne Valery
— Carol Martin
Nicholas Tanner
— Gas Station Attendant
John Bushelle
— Assistant Commissioner
Sam Kydd
— Gang Member (uncredited)
Ian Wilson
— Music Shop Customer (uncredited)