George Baker as Prof. Gottlieb

Felicity Devonshire as Cathy

Anna Bergman as Suzy

Suzy Mandel as Erica

Heather Deeley as Marion

Peter Blake as John

Queenie Watts as John's mother

Hugh Lloyd as John's father

Ian Hendry as Uncle Rodney

Chet Townsend as Nick

Johnny Vyvyan as Jockey

Joyce Blair as Beryl

Monika Ringwald as Naked secretary

Norman Chappell as Principal

Lindy Benson as Blonde wife (as Linda Benson)

Forbes Collins as Squire

Claire Davenport as Fat stripper

Mary Millington as Choir Girl (uncredited)

Edward Kalinski as Benny

Maria St. Clare as June

Martin Neil as Joe

Barbara Eatwell as Pigeon girl

Jonathan David as Interrogator

John Benson as Executive

Dudley Stevens as Prisoner

Normaline as Hazel (the maid)

Susan Glanville as Frustrated housewife

Guy Standeven as Psychiatrist

Steve Amber as Imaginary lover

Peppi Borza as Dancer

John Melainey as Dancer

Roger Finch as Dancer

Michael Clarke as Gay Motorist (uncredited)