Song That's Playing In My Head (Zum Zum Zum)

The sons of a music-loving insurance broker take extreme measures to find happiness for themselves and others, with some help from the power of music.

• 
  Bruno Corbucci
• 
  Vanda Tuzzi

• 
  Little Tony
  Tony Bertozzini
• 
  Isabella Savona
  Rosalia Caputo
• 
  Walter Brugiolo
  Carletto Bertozzini
• 
  Dolores Palumbo
  Tosca Bertozzini
• 
  Enzo Cannavale
  Filippo
• 
  Vittorio Congia
  Vittorio
• 
  Enrico Montesano
  Enrico 'Camomilla'
• 
  Paolo Panelli
  Paolo
• 
  Orietta Berti
  Suor Teresa
• 
  Pippo Baudo
  Himself
• 
  Peppino De Filippo
  Peppino Bertozzini
• 
  Lino Banfi
  Hotel receptionist
• 
  Gianfranco D'Angelo
  Party presentator
• 
  Nino Terzo
  Filiberto Caputo
• 
  Luca Sportelli
  Sor Ignazio
• 
  Mario Meniconi
  Padre di Enrico
• 
  Dante Cleri
  Fioraio
• 
  Enzo Guarini
  Luigino Monticelli
• 
  Bruno Canfora
  Spasimante di Rosalia
• 
  Giacomo Furia
  Pasquale