Terence Hill

Kid

Bud Spencer

Ben

John Sharp

Jefe

Patty Shepard

Liza

Donald Pleasence

Doctor

Deogratias Huerta

Attila

Manuel de Blas

Paganini

Luis Barbero

Jeremias

Emilio Laguna

Director coral

Rafael Albaicín

Feriante

Giancarlo Bastianoni

Gymnast

Roberto Alessandri

Acteur

Ada Pometti

Girl #1

José Yepes

Acteur

Inés Morales

Girl #2

José Luis Lizalde

Acteur

Omero Capanna

Thug at Party (uncredited)

Giovanni Cianfriglia

Boxer (uncredited)

Rémy Julienne

Biker Thug (uncredited)

Rocco Lerro

Gymnast (uncredited)

Manuel Mateos

(uncredited)

Franco Moruzzi

Gymnast (uncredited)

José Panizo

Bingo (uncredited)

Osiride Pevarello

Gymnast (uncredited)

José Santa Cruz

Lefty (uncredited)

Pietro Torrisi

Gymnast (uncredited)

Franco Ukmar

Gymnast (uncredited)

Marcello Verziera

Boxer (uncredited)

Danilo Recanatesi

Henchman (uncredited)