La promessa Skuespillere og folkene bag
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) Gianfranco CalligarichForfatter Friedrich DürrenmattRoman Giulio AlbonicoDirector Of Photography Egisto MacchiKomponist af original musik 
