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