Bud SpencerJack Clementi / Sceneggiatore Raymond PellegrinCommissioner Tony Caruso Geoffrey CoplestonHenry Winterbottom Ole JorgensenMr. Whitecat Sergio SmacchiZebra's Thug (uncredited) Marcello VerzieraZebra's Thug (uncredited) Giuseppe MarroccoConference Member (uncredited) Armand MeffreDon Gino Carmelo Antonino LicausiSurricido Susan MarshallLilli Buonocore Pino AmmendolaChewing Gum Bruna FeirriFernande's Maid Francesca FerreChemist's Assistant Albano BufaliniCab Driver Leonardo De CarmineCommissar Arresting Clementi Roberto MalderaVasco Henchman Giulio MassiminiMuseum's Guide Andy MillerChemical Specialist Omero CapannaVasco's Thug (uncredited) Enzo MaggioVasco's Thug (uncredited) Margo StefanelliVasco's Thug (uncredited) Ozgur UzumOscar (uncredited) Ursula AndressSusy Kaminski Paul GuersPhilippe Brossard Michel AlbertiniTony Cilento Jean BoisseryLouis Meller Ines Des LongchampsMarielle Mazel Bernard WoringerYves Lucas Jean-Claude BraquetMarcel Vibert Bruno Di LuiaAlfons Calet Brigitte ManuceauMarthe Brossard Giancarlo BastianoniJules (uncredited) Woo ManchiniJuliette (uncredited) Isabel RussinovaEdith Fenoglia Natalino LibralessoFrancesco Guidi Jean-Paul MuelDr. Christiani Paolo CasellaVisitor at Presentation Mohamed BadrsalemZebra's Thug (uncredited) Massimo CiprariGeneral at Presentation (uncredited) Alfonso GigantiPoliceman (uncredited) Franco UkmarZebra's Thug (uncredited) Michel ConstantinXavier Baudin Venantino VenantiniPierre Legrand Pierre HatetColonel Berthier Bruno AliasConference Member (uncredited) Luciano ZanussiConference Member (uncredited) Hartmut BeckerAlfred Merkl Josef FröhlichWerner Kraus Robert SommerKraus' Assistant Mariangela GiordanoMaria Merkl Maria Grazia BonMrs. Kraus John ArmsteadHotel Employee Andreas BorcherdingBlackmailer Sally DayBlonde Woman at Bar Gianluigi PizzettiHotel Manager Andreas JungPeasant's Grandson Udo WeinbergerMerkl's Attorney Alan GoodsonBlack Friar (uncredited) Pietro TorrisiRoth's Thug (uncredited) Claudio ZucchetRoth's Thug (uncredited) StenoRegista / Sceneggiatore Maurizio PonziRegista / Idea Bud SpencerJack Clementi / Sceneggiatore Lucio De CaroSceneggiatore Simon MichaëlSceneggiatore Ottavio JemmaSceneggiatore Vittorio Cecchi GoriProduttore Mario Cecchi GoriProduttore Silvano IppolitiDirector Of Photography Karel SvobodaCompositore Musicale Originale Maurizio De AngelisCompositore Musicale Originale Jonathan LieblingFoley Artist Guido De AngelisCompositore Musicale Originale 
