Francesco CarneluttiDottor Lauker Rossano BrazziCommissario Matthäi Raymond PellegrinCapo della polizia Macha MérilSignora Heller Gisella BurinatoSignora Moser Marne MaitlandVon Gunthen Gianni PuloneSignor Moser Diana TorrieriSignora Schrott Larry DolginCommissario Feller (uncredited) Friedrich DürrenmattNovel Gianfranco CalligarichSchrijver Giulio AlbonicoDirector Of Photography Egisto MacchiOriginal Music Composer 
