 | Paolo Villaggio als Ugo Fantozzi |
 | Anna Mazzamauro als Signorina Silvani |
 | Gigi Reder als Filini |
 | Giuseppe Anatrelli als Luciano Calboni |
 | Umberto D'Orsi als Count Diego Catellani |
 | Liù Bosisio als Pina Fantozzi |
 | Dino Emanuelli als Megaditta Employee |
 | Plinio Fernando als Mariangela Fantozzi |
 | Paolo Paoloni als Duke Count Maria Rita Vittorio Balabam |
| Elena Tricoli als Countess Alfonsina Serbelloni Mazzanti Viendalmare |
 | Pietro Zardini als Fonelli |
| Artemio Antonini als Rude Guy #2 |
| Amerigo Alberani als Megaditta Employee |
 | Mirko Baiocchi als Canello |
 | Luciano Bonanni als Japanese Restaurant Client |
| Arnaldo Colombaioni als New Year Party Waiter |
| Willy Colombaioni |
| Iolanda Fortini als Teresa Catellani |
 | Ettore Geri als Megaditta Executive |
| Ivano Gobbo als Folagra |
 | Giorgio Iovine als Megaditta Employee |
 | Enrico Marciani als Megaditta Executive |
 | Nicola Morelli als Dr. Calabar |
 | Nello Pazzafini als Rude Guy #1 |
| Valerio Ruggeri als Lost Employees Searcher |
 | Giuseppe Terranova als Megaditta Employee |
 | Vincenzo Vitagliano |
| Mario Bartoli als Megaditta Employee (uncredited) |
| Mario Bartolomei als Megaditta Employee (uncredited) |
 | Bruno Bertocci als Megaditta Employee (uncredited) |
 | Erminio Bianchi Fasani als Megaditta Employee (uncredited) |
 | Arnaldo Caivano als Megaditta Employee (uncredited) |
| Fulvio Esposti als Megaditta Employee (uncredited) |
 | Jimmy il Fenomeno als Megaditta Employee (uncredited) |
| Bruno Rosa als Megaditta Employee (uncredited) |
 | Amedeo Salamon als Megaditta Employee (uncredited) |
| Maurizio Streccioni als Megaditta Employee (uncredited) |
 | Sergio Ukmar als Megaditta Employee (uncredited) |
 | Antonio Anelli als Megaditta Executive (uncredited) |
| Manlio Dalla Pria als Megaditta Executive (uncredited) |
 | Richard Dunne als Megaditta Executive (uncredited) |
 | Mario Pascucci als Megaditta Executive (uncredited) |
 | Attilio Pelegatti als Megaditta Executive (uncredited) |
 | Domenico Ravenna als Megaditta Executive (uncredited) |
 | Alfredo Adami als Billiard Pool Master (uncredited) |
 | Hal Yamanouchi als Japanese Cook (uncredited) |
| Franco Ukmar als Japanese Restaurant Warrior (uncredited) |
 | Oscar Giustini als Japanese Restaurant Warrior (uncredited) |
 | Luigi Scavran als Japanese Restaurant Client (uncredited) |
| Giuliana Melis als Japanese Restaurant Client (uncredited) |
 | Margherita Horowitz als Catellani's Guest (uncredited) |
| Isabella Zanussi als Catellani's Guest (uncredited) |
| Nando Sarlo als Catellani's Guest (uncredited) |
 | Filippo Perego als Clinic Administrator (uncredited) |
| Augusto Brenna als Clinic Prisoner (uncredited) |
 | Enrico Cesaretti als Usher (uncredited) |
 | Eros Buttaglieri als Bus Passenger (uncredited) |
 | Alessandra Vazzoler als New Year Party Guest (uncredited) |
| Bruno Alias als New Year Party Guest (uncredited) |
 | Angelo Casadei als New Year Party Guest (uncredited) |
 | Giuseppe Marrocco als New Year Party Guest (uncredited) |
| Decio Gambini als New Year Party Guest (uncredited) |
 | Ferruccio Fregonese als French Minister (uncredited) |
| Luciano Salce | Director |
| Erico Menczer | Director of Photography |
| Paolo Villaggio | Novel |
| Paolo Villaggio | Screenplay |
| Amedeo Salfa | Editor |
| Nedo Azzini | Production Design |
| Osvaldo Desideri | Set Decoration |
| Orietta Nasalli Rocca | Costume Design |
| Mario Dallimonti | Sound |
| Leonardo Benvenuti | Screenplay |
| Piero De Bernardi | Screenplay |
| Luciano Salce | Screenplay |
| Fabio Frizzi | Original Music Composer |
| Vince Tempera | Conductor |
| Franco Bixio | Music Consultant |
| Aldo U. Passalacqua | Line Producer |
| Maurizio Mein | First Assistant Director |
| Attilio Viti | Unit Manager |
| Roberto Brega | Camera Operator |
| Gianfranco Mecacci | Makeup Artist |
| Paolo Franceschi | Hairstylist |
| Silvana Olasio | Administration |
| Nazzareno Zamperla | Master at Arms |
| Rinaldo Zamperla | Master at Arms |
| Pietro Sassaroli | Production Secretary |
| Francesco Vetrano | Production Secretary |
| Marisa Agostini | Script Supervisor |
| Angela Bordi | Assistant Editor |
| Cecilia Catalucci | Assistant Editor |
| Olga Sarra | Assistant Editor |
| Luigi Bernardini | Assistant Camera |
| Francesco Gagliardini | Assistant Camera |
| Claudio Bondi | Second Assistant Director |
| Giangiacomo Tabet | Second Assistant Director |
| Nello Giorgetti | Assistant Set Decoration |
| Marcello Meniconi | Assistant Makeup Artist |
| Massimiliano D'Ottavi | Boom Operator |
| Gianni D'Amico | Sound Mixer |
| Joseph Nathanson | Visual Effects |
| Giovanni Bertolucci | Executive Producer |
| Andrea Rizzoli | Producer |
