• 
  Ciro Ippolito

  regizor

• 
  Luigi Diberti

  Roy
• 
  Michele Soavi

  Burt
• 
  Roberto Barrese

  Speleologist
• 
  Mark Bodin

  Roy (as Marc Bodin)
• 
  Fabrizia Castagnoli

  Thelma Joyce (voice)
• 
  Benedetta Fantoli

  Maureen (as Benny Aldrich)
• 
  Belinda Mayne

  Thelma Joyce

• 
  Danilo Micheli

  Bill (as Don Parkinson)
• 
  Judy Perrin

  Jill

• 
  Federico Del Zoppo

  camera and electrical departme
• 
  Silvio Fraschetti

  imagine
• 
  Guido De Angelis

  departament sunet
• 
  Maurizio De Angelis

  departament sunet
• 
  Ciro Ippolito

  producător

• 
  Nino Milano

  production manager
• 
  Ciro Ippolito

  scriitor