Gene KellyGiovanni E. 'Johnny' Columbo Teresa CelliIsabella Gomboli J. Carrol NaishLouis Lorelli Mario SilettiBenny Danetta / Nino Marc LawrenceCaesar Xavier Serpi Frank PugliaCarlo Sabballera Barry KelleyCapt. Thompson Carl MilletaireGeorge Allani / Tomasino Eleonora von MendelssohnMaria Columbo Peter BroccoRoberto Columbo Grazia NarcisoMrs. Danetta Mimi AgugliaMrs. Sabballera Luther DavisManusforfatter William H. WrightProdusent Cedric GibbonsArt Direction Edwin B. WillisSet Decoration Gabriel ScognamilloArt Direction Charles DeCrofAssistant Set Decoration Paul VogelDirector Of Photography Walter PlunkettCostume Design Sydney GuilaroffHairstylist Douglas ShearerRecording Supervision 
