Kun (voice)

Moka Kamishiraishi

Erin Fitzgerald

Mirai-chan

Haru Kuroki

Mirai

Victoria Grace

The Father

John Cho

Michael Sinterniklaas

Victor Brandt

The Mother

Rebecca Hall

Father

Gen Hoshino

Mother (voice)

Kumiko Aso

Erica Schroeder

Grandfather

Koji Yakusho

Great-Grandfather (Young Man) (voice)

Daniel Dae Kim

Kun

Jaden Waldman

Mysterious Man (voice)

Mitsuo Yoshihara

Evan Smith

Valerie Arem

Grandmother (voice)

Yoshiko Miyazaki

Madigan Kacmar

Boy

Masaharu Fukuyama

Baby Mirai (voice)

Kaede Hondo

Erick Abbate

Cade Lappin

Finn Robbins

Barry Mitchell

Matsunojo Kanda

Stephanie Sheh

Achille Orsoni

Lisa Martino

Suliane Brahim

Emmanuel LeMire

Félicien Juttner

l'arrière-grand-mère

Asami Sanada

Mysterious Man

Crispin Freeman

Male High School Student

Tasuku Hatanaka

Girl

Sakura Saiga

Grandmother

Eileen T'Kaye

Station Agent

Joe Thomas*