Alberto Sordi as Rodolfo Nardi

Aldo Fabrizi as Alessandro Biagi, il suocero di Nardi

Marisa de Leza as Marina Biagi

Franco Silva as Gigi Biagi, cognato di Rodolfo

Rita Giannuzzi as Isa, la fidanzata di Gigi

Sergio Raimondi as Tullio Biagi, cognato di Rodolfo

Turi Pandolfini as Il nonno di Gianni

Achille Majeroni as maestro di canto

Pina Bottin as Rosa, la cameriera

Riccardo Billi as Romoletto, il giornalaio

Paola Borboni as Sonia Varonowska

Gina Amendola as sora Mimma

Fulvio Manes as Peppetto Biagi

Elli Parvo as il contralto Fasòli

Nadia Bianchi as

Mario Passante as

Nerio Bernardi as

Mino Doro as

Giulio Neri as Opera singer