Franco Franchi as Franco Franchetti, il 'Professore'

Ciccio Ingrassia as Prof. Francesco Ingrassini

Isabella Biagini as Il fantasma

Gabriella Giorgelli as Bruna la Svelta

Adriana Giuffrè as Prof.ssa di matematica

Lino Banfi as Ferdi

Evi Farinelli as Prof.ssa Evi Rossi

Renato Malavasi as don Ascanio

Franca Haas as

Enzo Loglisci as

Ignazio Leone as meccanico

Flora Carosello as moglie di Franco

Enzo Andronico as ladro veneto

Umberto D'Orsi as commissario

Lorenzo Piani as

Luca Sportelli as bidello

Valentino Macchi as

Paolo Sceusan as

John Bartha as gioielliere