 Moka KamishiraishiKun (voice) | Kun (voice) |
 Haru KurokiMirai (voice) | Mirai (voice) |
 Gen HoshinoFather (voice) | Father (voice) |
 Kumiko AsoMother (voice) | Mother (voice) |
 Mitsuo YoshiharaMysterious Man (voice) | Mysterious Man (voice) |
 Yoshiko MiyazakiGrandmother (voice) | Grandmother (voice) |
 Koji YakushoGrandfather (voice) | Grandfather (voice) |
 Masaharu FukuyamaYoung Man (voice) | Young Man (voice) |
 Kaede HondoBaby Mirai (voice) | Baby Mirai (voice) |
 Hakuzan KandaRobot at the Tokyo Station Lost & Found Center (voice) | Robot at the Tokyo Station Lost & Found Center (voice) |
 Tasuku HatanakaHigh School Student (voice) | High School Student (voice) |
 Asami SanadaGreat-Grandma (voice) | Great-Grandma (voice) |
| SSakura SaigaMother (Young Girl) (voice) | Mother (Young Girl) (voice) |
| KKazuhisa TanakaTokyo Station Announcer (voice) | Tokyo Station Announcer (voice) |
 Tadashi NakamuraShinkansen (voice) | Shinkansen (voice) |
 Kaori YamagataAdditional Voices (voice) | Additional Voices (voice) |
 Sakiko TamagawaAdditional Voices (voice) | Additional Voices (voice) |
 Hajime InoueAdditional Voices (voice) | Additional Voices (voice) |
 Toranosuke KatoAdditional Voices (voice) | Additional Voices (voice) |
 Atsuki MorinagaAdditional Voices (voice) | Additional Voices (voice) |
 Harutomo KoyamaAdditional Voices (voice) | Additional Voices (voice) |
| MMaika HaraAdditional Voices (voice) | Additional Voices (voice) |
| BBianca AllenAdditional Voices (voice) | Additional Voices (voice) |
