Character Name : Kun (voice)

Original Name : 上白石萌歌

Gender : Female

Character Name : Mirai (voice)

Original Name : 黒木華

Gender : Female

Character Name : Father (voice)

Original Name : 星野源

Gender : Male

Character Name : Mother (voice)

Original Name : 麻生久美子

Gender : Female

Character Name : Mysterious Man (voice)

Original Name : 吉原光夫

Gender : Male

Character Name : Grandmother (voice)

Original Name : 宮崎美子

Gender : Female

Character Name : Grandfather (voice)

Original Name : 役所広司

Gender : Male

Character Name : Young Man (voice)

Original Name : 福山雅治

Gender : Male

Character Name : Baby Mirai (voice)

Original Name : 本渡楓

Gender : Female

Character Name : Kun (English version, voice)

Original Name : Jaden Waldman

Gender : Male