Nino Manfredi as Quirino Raganelli

Ugo Tognazzi as Prof. Gildo Beozi

Alberto Sordi as Guglielmo Bertone

Umberto D'Orsi as Ernesto (I)

Ilaria Occhini as Gabriella (I)

Riccardo Garrone as Alvaro Morandini (I)

Claudie Lange as Erminia, la moglie di Beozi (II)

Mario Frera as Caponi dell'Ultramarket (I)

Nanda Primavera as La suocera di Beozi (II)

Gaia Germani as Self (segment "Guglielmo il Dentone")

Paola Borboni as Baracchi-Croce, assistente di Beozi (II)

Claudio Gora as l'antiquario (II)

Armando Trovajoli as Self (segment "Guglielmo il Dentone") (uncredited)

Lelio Luttazzi as Self (segment "Guglielmo il Dentone")

Nanni Loy as Self (segment "Guglielmo il Dentone")

Vincenzo Talarico as Self (segment "Guglielmo il Dentone")

Alessandro Cutolo as Self (segment "Guglielmo il Dentone")

Edy Campagnoli as Self (segment "Guglielmo il Dentone")

Alice Kessler as Self (segment "Guglielmo il Dentone")

Leopoldo Valentini as Perelli

Romolo Valli as padre Baldini (III)

Franco Fabrizi as Francesco Martello (III)

Ellen Kessler as Self (segment "Guglielmo il Dentone")

Leo J. Wollemborg as Self (segment "Guglielmo il Dentone")

Pina Cei as la proprietaria dell'atelier Fabiani (III)

Silvio Battistini as Alberto

Carlo Sposito as Massimo Tabusso, il censore cinematografico (I)

Donatella Della Nora as Giulia impiegata occhialuta Ultramarket (I)

Renato Terra as Eliminated Competitor

Ugo Fangareggi as impiegato Ultramarket (I)

Ugo Pagliai as un concorrente eliminato (III)

Piero Gerlini as Edoardo, il portiere RAI (III)

Giulio Platone as tecnico Istituto Geografico (III)

Marcello Mandò as ingegnere Istituto Geografico (III)

Francesco Sormano as dottor Calabrese, il dirigente RAI amico della Germani