Nino Manfredi as Natale Tartufato aka Capellone

Françoise Prévost as Elvira Spallanzani

Clive Revill as Charles Harrison

Jean Sobieski as Edmund Stevens Jr

Giampiero Albertini as Ottone

Gastone Moschin as L'avvocato Ramirez

Giorgia Moll as agente segreto "Il passero Filippo"

Alvaro Piccardi as Ciro De Dominicis

Enzo Andronico as Femore

Loris Bazzocchi as Tony

Gianni Pulone as Marcovaldo

Anastasia Stevens as Rosalinda "la mignotta"