 Vittorio De SicaCesare Celli | Cesare Celli |
 Raquel WelchJuliana | Juliana |
 Robert WagnerHarry Price | Harry Price |
 Godfrey CambridgeBenjamin 'Benny' Brownstead | Benjamin 'Benny' Brownstead |
 Davy KayeDavey Collins (as Davey Kaye) | Davey Collins (as Davey Kaye) |
 Francesco MulèAntonio Tozzi | Antonio Tozzi |
 Edward G. RobinsonProfessor Samuels | Professor Samuels |
 Victor SpinettiCaptain Giglio | Captain Giglio |
 Yvonne SansonTeresa | Teresa |
 Mickey KnoxJoe Ware | Joe Ware |
 Femi BenussiUncle Carlo's Bride | Uncle Carlo's Bride |
| PPaola BorboniSignora Rosa | Signora Rosa |
 Ermelinda De FeliceEmma | Emma |
 Andrea AureliCarabiniere | Carabiniere |
 Aldo Bufi LandiCapitano Del Signore | Capitano Del Signore |
 Carlo CroccoloFranco | Franco |
| RRoberto De SimoneUncle Carlo | Uncle Carlo |
 Piero GerliniCaptain Capuano | Captain Capuano |
 Giulio MarchettiLt. Naldi | Lt. Naldi |
 Gianna DauroSignora Clara | Signora Clara |
| CCarlo RizzoMaitre d'Hotel | Maitre d'Hotel |
 Nino MuscoChef | Chef |
 Calisto CalistiInspector Bordoni | Inspector Bordoni |
 Luigi BonosOld House Owner (uncredited) | Old House Owner (uncredited) |
| AAntonio CoreviPriest at Luigi's Funeral (uncredited) | Priest at Luigi's Funeral (uncredited) |
 Jean-Jacques DelboTrain Engineer (uncredited) | Train Engineer (uncredited) |
 Valéry InkijinoffMafia Guy in Sauna (uncredited) | Mafia Guy in Sauna (uncredited) |
 Romano MilaniWedding Guest (uncredited) | Wedding Guest (uncredited) |
 Nino VingelliRestaurant Manager (uncredited) | Restaurant Manager (uncredited) |
 Milena VukotićAngelina Pedrone (uncredited) | Angelina Pedrone (uncredited) |
