Alvaro Vitali as Pierino

Michele Gammino as Prof. Celani

Michela Miti as La supplente

Sofia Lombardo as La signorina Mazzacurati, la Maestra

Deddi Savagnone as Madre di Pierino

Cristina Moffa as Sorella di Pierino

Riccardo Billi as Nonno di Pierino

Enzo Liberti as Padre di Pierino

Francesca Romana Coluzzi as Passante che ha paura dei gatti

Vincenzo Crocitti as Uomo morso da una vipera

Diana Dei as Signora sulla panchina

Enzo Robutti as Ferramenta

Enzo Garinei as Cliente Ferramenta

Marisa Merlini as Chiromante

Stefania Stella as Benedetta

Walter Margara as Luigi

Giulio Massimini as Padre di Luigi

Attilio Dottesio as Dottore

Franca Mantelli as Madre al parco

Alfredo Adami as Alfonso

Dino Cassio as Tassista

Fabio Grossi as Barista

Franco Caracciolo as Uomo al bar

Susanna Moffetta as Susanna

Franca Scagnetti as Cassiera Bar

Ennio Antonelli as Cliente Ristorante

Gioia Scola as Donna incinta

Guerrino Crivello as Uomo con Donna incinta

Salvatore Baccaro as Flipperista

Nestore Cavaricci as Cliente Ristorante

Rina Mascetti as Donna che interviene

Giancarlo Colarossi as Lucio

Valerio Isidori as Mendicante

Paki Valente as Ragazzo Macchina