Basta che non si sappia in giro!..

Lino Banfi as Il Direttore del carcere Vittorio Mezzogiorno as Lupo Marzio Honorato as il carcerato mediatore Isa Danieli as Ersilia, moglie di Enzo Lucarelli Monica Vitti as Amanda / Lia Grazia Di Marzà as la proprietaria della copisteria Monica Fiorentini as una dattilografa Nando Marineo as il maresciallo delle guardie carcerarie Nino Manfredi as Enzo Lucarelli / Paolo Gallizzi Johnny Dorelli as Antonio Bormioli

Luigi Magni Director, Screenplay, Story Franco Fraticelli Editor Lucia Mirisola Production Design, Costume Design Castellano Screenplay, Story Ruggero Mastroianni Editor Scarpelli Screenplay, Story Armando Trovajoli Original Music Composer Luigi Comencini Director Age Screenplay, Story Nino Baragli Editor Pipolo Screenplay, Story Nanni Loy Director