Fernando Sebastian Monjaraz
— Hugo
Rose McAvoy
— Elise
Yoon Namgoong
— Yoon
Gaby Dubon
— Hugo's Mother
Rodman Martin
— Elise's Father
Rayce Snyder
— Pablo
Veronica Jacques
— Professor
Edward Dutch Anthony
— Old Hugo
Sukyung Chung
— Yoon's Mother
Eugenio Geiken
— Tony
Alan O'Brian
— Commissioner
Daniel Yesin Kim
— Piano Instructor
Marcie Rich
— Elise's Mother
Juliana Schoedinger
— Liliana's Mother
Gabby Niermann
— Little Elise
Andrew Carl
— Antonio
Tobin Carter
— Ash
Melissa Hernandez
— Isabel
Kimhoang Tran-Cao
— Jay's Mother