Jane Asher as Susan

John Moulder-Brown as Mike

Karl Michael Vogler as Gym Teacher

Christopher Sandford as Chris

Diana Dors as Bathhouse Female Client #1

Louise Martini as Beata

Erica Beer as Bathhouse Cashier

Anita Lochner as Kathy

Anne-Marie Kuster as Angie

Cheryl Hall as Red Hat Girl

Christine Paul-Podlasky as White Coat Girl

Dieter Eppler as Bathhouse Boiler Room Manager

Karl Ludwig Lindt as Bathhouse Manager

Eduard Linkers as Cinema Manager

Will Danin as Young Police Officer

Gerald Rowland as Cap Boy

Burt Kwouk as Street Food Cart Manager

Uli Steigberg as Mike's Father (uncredited)

Erika Wackernagel as Mike's Mother (uncredited)

Ursula Mellin as Bathhouse Female Client #2 (uncredited)

Peter Martin Urtel as Old Police Officer (uncredited)

Jon Laurimore as Erotic Show Announcer (uncredited)

Jerzy Skolimowski as Tube Passenger With Newspaper (uncredited)

Ursula Holstein as Sex Film Actress (uncredited)

Flavia Keyt as Sex Film Actress (uncredited)