John Phillip Law

Character: Diabolik

Marisa Mell

Character: Eva Kant

Michel Piccoli

Character: Inspector Ginko

Adolfo Celi

Character: Ralph Valmont

Claudio Gora

Character: Police Chief

Mario Donen

Character: Sgt. Danek

Renzo Palmer

Character: Mr. Hammond

Caterina Boratto

Character: Lady Clark

Lucia Modugno

Character: Prostitute

Annie Gorassini

Character: Rose

Carlo Croccolo

Character: Lorry Driver

Lidia Biondi

Character: Policewoman

Andrea Bosic

Character: Bank Manager

Federico Boido

Character: Joe

Tiberio Mitri

Character: Valmont's Henchman #1

Isarco Ravaioli

Character: Valmont's Henchman #2

Giorgio Sciolette

Character: Dr. Ferrar

Terry-Thomas

Character: Minister of Interior / Minister of Finance

Giulio Donnini

Character: Dr. Vernier (uncredited)

Edward Febo Kelleng

Character: Sir Harold Clark (uncredited)

Sandro Dori

Character: Stud (uncredited)

Giorgio Gennari

Character: Rudy (uncredited)

Giuseppe Fazio

Character: Tony (uncredited)

Massimo Ciprari

Character: Fake Diplomat (uncredited)

Franco Bellucci

Character: Fake Diplomat (uncredited)

Orlando Pallamari

Character: Mr. Hammond's Secretary (uncredited)

Francesco Mulè

Character: Crematoria Operator (uncredited)

Wolfgang Hillinger

Character: Valmont's Henchman (uncredited)

Angela Palmieri

Character: Dr. Vernier's Nurse (uncredited)

Regina Elena Bisio

Character: Old Woman at the Morgue (uncredited)

Milena Zampana

Character: Party Guest (uncredited)

Raniero Dorascenzi

Character: Party Guest (uncredited)

Vezio Natili

Character: Party Guest (uncredited)

Lella Cattaneo

Character: Party Guest (uncredited)

Renzo Granelli

Character: Party Guest (uncredited)

Mario Ingrassia

Character: Party Guest (uncredited)

Filippo Perego

Character: Party Guest (uncredited)

Augusto Innocenzi

Character: Party Guest (uncredited)

Domenico Ravenna

Character: Party Guest (uncredited)

Guido Barlocci

Character: Party Guest (uncredited)

Umberto Fantoni

Character: Party Guest (uncredited)

Ugo Ballester

Character: Journalist at Press Conference (uncredited)

Enzo Mondino

Character: Journalist at Press Conference (uncredited)

Carlo Micolano

Character: Journalist at Press Conference (uncredited)

Ferruccio Fregonese

Character: Journalist at Press Conference (uncredited)

Angelo Casadei

Character: Journalist at Press Conference (uncredited)

Mario Pascucci

Character: Journalist at Press Conference (uncredited)

Silvio Klein

Character: Journalist at Press Conference (uncredited)

Bruno Degni

Character: Journalist at Press Conference (uncredited)

Oscar Sciamanna

Character: Reporter (uncredited)