Michael Brandon
Roberto Tobias
Mimsy Farmer
Nina Tobias
Jean-Pierre Marielle
Gianni Arrosio
Aldo Bufi Landi
Pathologist
Calisto Calisti
Carlo Marosi
Marisa Fabbri
Amelia, the Maid
Oreste Lionello
The Professor
Fabrizio Moroni
Mirko
Corrado Olmi
Porter
Stefano Satta Flores
Andrea
Laura Troschel
Maria
Francine Racette
Dalia
Bud Spencer
Diomede / Godfrey
Dante Cleri
Coffin Salesman
Guerrino Crivello
Rambaldi, the Neighbor
Gildo Di Marco
Postman
Tom Felleghy
Police Commissioner Pini
Leopoldo Migliori
Musician
Fulvio Mingozzi
Music Studio Manager
Stefano Oppedisano
Bearded guy with girlfriend
Pino Patti
Funeral Exhibition Attendant
Ada Pometti
Extra (credit only)
Jacques Stany
Psychiatrist
Fortunato Cecilia
Funeral Exhibition Visitor (uncredited)
Franz Colangeli
Funeral Exhibition Visitor (uncredited)
Shirley Corrigan
Girl at Party (uncredited)
Luigi Cozzi
Masked Killer in Theater (uncredited)
Giovanni Di Benedetto
Funeral Exhibition Attendant (uncredited)
Sandro Dori
Funeral Exhibition Attendant (uncredited)
Renzo Marignano
Funeral Exhibition Attendant (uncredited)
Quinto Marziali
Funeral Exhibition Visitor (uncredited)
Diego Morreale
Extra (uncredited)
Anna Maria Perego
Delia's Mother (uncredited)
Maurizio Streccioni
Funeral Exhibition Visitor (uncredited)