 | Moka Kamishiraishi als Kun (voice) |
 | Haru Kuroki als Mirai (voice) |
 | 星野源 als Father (voice) |
 | Kumiko Aso als Mother (voice) |
 | Mitsuo Yoshihara als Mysterious Man (voice) |
 | Yoshiko Miyazaki als Grandmother (voice) |
 | Koji Yakusho als Grandfather (voice) |
 | Masaharu Fukuyama als Young Man (voice) |
 | 本渡楓 als Baby Mirai (voice) |
| 細田守 | Director |
| Masakatsu Takagi | Original Music Composer |
| Shigeru Nishiyama | Editor |
| Yuichiro Saito | Producer |
| Takuya Ito | Producer |
| 川村元気 | Producer |
| Yuichi Adachi | Producer |
| Nozomu Takahashi | Production Manager |
| Daisuke Iga | Costume Design |
| 上條安里 | Production Design |
| Hitoshi Ito | Associate Producer |
| Hiroomi Yamakawa | Key Animation |
| Tatsuro Yamashita | Theme Song Performance |
| 林孝輔 | Background Designer |
| 大森崇 | Art Direction |
| Yohei Takamatsu | Art Direction |
| Atsuko Nozaki | Key Animation |
| Atsuko Tanaka | Key Animation |
| 今井史枝 | Key Animation |
| Harumi Takagi | Key Animation |
| Hideki Hamasu | Key Animation |
| Hiroshi Kawaguchi | Key Animation |
| 瀬口泉 | Key Animation |
| Katsuyoshi Nakatsuru | Key Animation |
| Kazutaka Ozaki | Key Animation |
| Kenji Hachizaki | Key Animation |
| Mariko Yamamoto | Key Animation |
| 横田匡史 | Key Animation |
| Masaru Ooshiro | Key Animation |
| Misato Hamada | Key Animation |
| Naoki Tate | Key Animation |
| Ryosuke Nishii | Key Animation |
| Satoko Morikawa | Key Animation |
| Shinichiro Yamada | Key Animation |
| Shougo Furuya | Key Animation |
| Tadashi Sakazaki | Key Animation |
| Takayuki Hamada | Key Animation |
| Takeshi Inamura | Key Animation |
| Tatsuya Tomaru | Key Animation |
| Tomoaki Takase | Key Animation |
| Yoshihiro Kitano | Key Animation |
| 小磯由佳 | Key Animation |
| 秦綾子 | Animation Director |
| Ryo Horibe | CGI Director |
| 青山浩行 | Character Designer |
| 石井俊匡 | Assistant Director |
| Uken Ryu | Background Designer |
| 石井弓 | Background Designer |
| 福留嘉一 | Background Designer |
| 中村聡子 | Background Designer |
| 伊奈涼子 | Background Designer |
| 岩月梨紗 | Background Designer |
| Osamu Nakajima | Background Designer |
| 春日井直美 | Background Designer |
| 片山久瑠実 | Background Designer |
| 鮫島潔 | Background Designer |
| Kiyomi Oota | Background Designer |
| 矢野きくよ | Background Designer |
| Kazuo Oga | Background Designer |
| Katsushi Aoki | Background Designer |
| Yoji Takeshige | Background Designer |
| 新田有花 | Background Designer |
| Daigo Ikeda | Line Producer |
| Kei Kushiyama | Associate Producer |
| Yuya Machida | Associate Producer |
| Shuzo Kasahara | Associate Producer |
| Yoshio Obara | Sound Recordist |
| Kenji Shibasaki | Sound Effects |
| Osamu Mikasa | Color Designer |
| 山下高明 | Layout Supervisor |
| Makoto Tanijiri | Production Design |
| Tatsuya Kameyama | Production Design |
| Atsuko Nakagawa | Production Design |
| Yoshitaka Kameda | Production Design |
| Reio Ono | Production Design |
| 細田守 | Screenplay |
| 細田守 | Original Story |
| Harumi Ikeya | Background Designer |
| 瀧川三智 | Assistant Editor |
| Kyoko Kitahara | Music Producer |
| 井上奈津子 | Foley Artist |
| Sakura Katsumata | Foley Artist |
| Masaru Ohgawara | Foley Artist |
| Kai Hasako | Production Assistant |
| Mirai Kase | Publicist |
| 南綾香 | Online Editor |
| 青山浩行 | Animation Director |
| Yoshinobu Obida | Publicist |
| Kazunori Shimizu | Music Editor |
