Michel Piccoli
Inspector Ginko
Caterina Boratto
Lady Clark
Carlo Croccolo
Lorry Driver
Tiberio Mitri
Valmont's Henchman #1
Isarco Ravaioli
Valmont's Henchman #2
Giorgio Sciolette
Dr. Ferrar
Terry-Thomas
Minister of Interior / Minister of Finance
Giulio Donnini
Dr. Vernier (uncredited)
Edward Febo Kelleng
Sir Harold Clark (uncredited)
Sandro Dori
Stud (uncredited)
Giorgio Gennari
Rudy (uncredited)
Giuseppe Fazio
Tony (uncredited)
Massimo Ciprari
Fake Diplomat (uncredited)
Franco Bellucci
Fake Diplomat (uncredited)
Orlando Pallamari
Mr. Hammond's Secretary (uncredited)
Francesco Mulè
Crematoria Operator (uncredited)
Wolfgang Hillinger
Valmont's Henchman (uncredited)
Angela Palmieri
Dr. Vernier's Nurse (uncredited)
Regina Elena Bisio
Old Woman at the Morgue (uncredited)
Milena Zampana
Party Guest (uncredited)
Raniero Dorascenzi
Party Guest (uncredited)
Vezio Natili
Party Guest (uncredited)
Lella Cattaneo
Party Guest (uncredited)
Renzo Granelli
Party Guest (uncredited)
Mario Ingrassia
Party Guest (uncredited)
Filippo Perego
Party Guest (uncredited)
Augusto Innocenzi
Party Guest (uncredited)
Domenico Ravenna
Party Guest (uncredited)
Guido Barlocci
Party Guest (uncredited)
Umberto Fantoni
Party Guest (uncredited)
Ugo Ballester
Journalist at Press Conference (uncredited)
Enzo Mondino
Journalist at Press Conference (uncredited)
Carlo Micolano
Journalist at Press Conference (uncredited)
Ferruccio Fregonese
Journalist at Press Conference (uncredited)
Angelo Casadei
Journalist at Press Conference (uncredited)
Mario Pascucci
Journalist at Press Conference (uncredited)
Silvio Klein
Journalist at Press Conference (uncredited)
Bruno Degni
Journalist at Press Conference (uncredited)
Oscar Sciamanna
Reporter (uncredited)
