Jacob Tremblay
Luca Paguro (voice)

Jack Dylan Grazer
Alberto Scorfano (voice)

Emma Berman
Giulia Marcovaldo (voice)

Saverio Raimondo
Ercole Visconti (voice)

Maya Rudolph
Daniela Paguro (voice)

Marco Barricelli
Massimo Marcovaldo (voice)

Jim Gaffigan
Lorenzo Paguro (voice)

Lorenzo Crisci
Guido (voice)

Marina Massironi
Signora Marsigliese (voice)

Gino La Monica
Tomasso (Old Fisherman) (voice)

Sandy Martin
Grandma Paguro (voice)

Giacomo Gianniotti
Giacomo (Young Fisherman) (voice)

Elisa Gabrielli
Concetta Aragosta (voice)

Mimi Maynard
Pinuccia Aragosta (voice)

Sacha Baron Cohen
Uncle Ugo (voice)

Francesca Fanti
Maggiore (Cop) (voice)

Jonathan Nichols-Navarro
Priest (voice)

Jim Pirri
Mr. Branzino (voice)

Arturo Sorino
Additional Voices (voice)