Jane Asher
Susan

John Moulder-Brown
Mike

Karl Michael Vogler
Gym Teacher

Christopher Sandford
Chris

Diana Dors
Bathhouse Female Client #1

Louise Martini
Beata

Erica Beer
Bathhouse Cashier

Anita Lochner
Kathy

Cheryl Hall
Red Hat Girl

Christine Paul-Podlasky
White Coat Girl

Dieter Eppler
Bathhouse Boiler Room Manager

Karl Ludwig Lindt
Bathhouse Manager

Eduard Linkers
Cinema Manager

Burt Kwouk
Street Food Cart Manager

Uli Steigberg
Mike's Father (uncredited)

Peter Martin Urtel
Old Police Officer (uncredited)

Jerzy Skolimowski
Tube Passenger With Newspaper (uncredited)

Flavia Keyt
Sex Film Actress (uncredited)