• 
  Marcello Fondato

  regizor

• 
  Vicente Coello

  scenarist

• 
  Terence Hill

  Kid
• 
  Bud Spencer

  Ben
• 
  Patty Shepard

  Liza
• 
  Manuel de Blas

  Paganini
• 
  Donald Pleasence

  The Doctor
• 
  Rafael Albaicín

  (as Rafael Albaicin)

• 
  Luis Barbero

  Jeremias
• 
  Giancarlo Bastianoni

  Gymnast
• 
  Deogratias Huerta

  Attila (as Deogracias Huerta)
• 
  Emilio Laguna

  Conductor
• 
  Inés Morales

  (as Ines Morales)
• 
  John Sharp

  The Boss
• 
  José Yepes

  (as Jose Yepes)

• 
  Ada Pometti

  Pretty girl 1