Dirk Bogarde as Charlie Hook

Margaret Leclere as Elsa (as Margaret Brooks)

Pamela Franklin as Diana

Louis Sheldon Williams as Hubert

John Gugolka as Dunston

Mark Lester as Jiminee

Phoebe Nicholls as Gerty (as Sarah Nicholls)

Gustav Henry as Willy

Parnum Wallace as Louis

Yootha Joyce as Mrs. Quayle

Claire Davidson as Miss Bailey

Anthony Nicholls as Mr. Halbert

Annette Carell as Mother

Edina Ronay as Doreen

Diana Ashley as Girl Friend

Garfield Morgan as Mr. Moley

Faith Kent as Woman Client

John Arnatt as Man Client

Jack Silk as Motor Cyclist

Gerald Sim as Bank Clerk (uncredited)

Max Howard as Schoolboy (uncredited)