 | Sara Takatsuki als Anna Sasaki (voice) |
 | Kasumi Arimura als Marnie (voice) |
 | Nanako Matsushima als Yoriko Sasaki (voice) |
 | Susumu Terajima als Kiyomasa Oiwa (voice) |
 | Toshie Negishi als Setsu Oiwa (voice) |
 | Ryoko Moriyama als Elderly Lady (voice) |
 | Kazuko Yoshiyuki als Nanny (voice) |
 | Hitomi Kuroki als Hisako (voice) |
 | Hiroyuki Morisaki als Art Teacher (voice) |
 | Takuma Otoo als Neighborhood Association Officer (voice) |
 | Hana Sugisaki als Sayaka (voice) |
 | Bari Suzuki als Elderly Lady 2 (voice) |
 | Shigeyuki Totsugi als Marnie's Father (voice) |
 | Ken Yasuda als Toichi (voice) |
 | Yo Oizumi als Dr. Yamashita (voice) |
 | Yuhko Kaida als Marnie's Mother (voice) |
 | Renge Ishiyama als Emily (voice) |
| Masashi Ando | Screenplay |
| Keiko Niwa | Screenplay |
| Hiromasa Yonebayashi | Screenplay |
| Hiromasa Yonebayashi | Director |
| Joan G. Robinson | Novel |
| Masashi Ando | Animation Director |
| Koji Hoshino | Producer |
| Yohei Taneda | Production Design |
| Yohei Taneda | Art Direction |
| Yoshiaki Nishimura | Producer |
| Priscilla Ahn | Theme Song Performance |
| Toshio Suzuki | Executive Producer |
| Takatsugu Muramatsu | Music |
| Takayuki Hamada | Key Animation |
| Naomi Kasugai | Background Designer |
| Atsushi Tamura | Key Animation |
| Yohei Taneda | Production Designer |
| Shougo Furuya | Key Animation |
| Makiko Futaki | Key Animation |
| Akira Honma | Key Animation |
| Kazuyoshi Onoda | Key Animation |
| Moe Usami | Key Animation |
| Takuro Okada | Casting |
| Seiji Okuda | Co-Producer |
| Ayumu Egawa | Background Designer |
| Tomotaka Kubo | Background Designer |
| Ryosuke Tsuchiya | Key Animation |
| Kenichi Yamada | Key Animation |
| Ayako Hata | Key Animation |
| Kosuke Hayashi | Background Designer |
| Yumi Ishii | Background Designer |
| Shinji Suetomi | Key Animation |
| Takashi Omori | Art Designer |
| Eriko Kimura | Sound Director |
| Misa Koyasu | Key Animation |
| Atsuko Tanaka | Key Animation |
| Junichi Taniguchi | Background Designer |
| Hiroomi Yamakawa | Key Animation |
| Eiji Yamamori | Key Animation |
| Masashi Ando | Character Designer |
| Masafumi Yokota | Key Animation |
| Rie Matsubara | Editor |
| Yoichi Nishikawa | Art Designer |
| Yohei Takamatsu | Art Designer |
| Shinji Hashimoto | Key Animation |
| Ayae Kanbe | Background Designer |
| Satoko Nakamura | Background Designer |
| Ryûji Hayashi | Casting |
| Ryoichi Fukuyama | Co-Producer |
| Tomoko Nakayama | Producer |
| Yoji Takeshige | Background Designer |
| Kikuyo Yano | Background Designer |
| Shunsuke Hirota | Key Animation |
| Takeshi Honda | Key Animation |
| Takeshi Inamura | Animation Director |
| Ei Inoue | Key Animation |
| Kazuo Oga | Background Designer |
| Akiyo Okuda | Key Animation |
| Noboru Yoshida | Art Designer |
| Koji Kasamatsu | Sound Director |
| Tsutomu Awata | Key Animation |
| Naoko Kawahara | Key Animation |
| Kenichi Konishi | Key Animation |
| Kitarou Kousaka | Key Animation |
| Kiyoshi Sameshima | Background Designer |
| Takaaki Yamashita | Key Animation |
| Shinsuke Nonaka | Production Manager |
| Ryoko Ina | Background Designer |
| Megumi Kagawa | Key Animation |
| Masami Hosokawa | Producer |
| Hiroyuki Okiura | Key Animation |
| Seiko Yoshioka | Background Designer |
| Naoya Fujimaki | Co-Producer |
| Kyohei Ito | Production Manager |
| Katsuya Kondo | Key Animation |
| Katsutoshi Nakamura | Key Animation |
| Michiyo Suzuki | Key Animation |
| Sayaka Hirahara | Background Designer |
| Tatsuya Kushida | Background Designer |
| Yuka Nitta | Background Designer |
| Naoya Wada | Key Animation |
| Shinji Otsuka | Key Animation |
| Hideki Hamasu | Key Animation |
| Youichi Watanabe | Background Designer |
| Atsuko Otani | Key Animation |
| Akihiko Yamashita | Animation Director |
| Atsushi Okui | Director of Photography |
| Tamaki Kojo | Line Producer |
| Shiho Sato | Background Designer |
| Kaneko Fujimaki | Additional Photography |
| Eiko Matsushima | Painter |
