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芦田愛菜 as Yui (voice) |
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粟野咲莉 as Hiyori (voice) |
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大竹しのぶ as Kiwa-san (voice) |
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Takuya Tasso as Kappa of the Kozuchi River (voice) |
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სალი ამაკი as Zashiki-warashi (voice) |
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伊達みきお as Kappa of Toyosawagawa (voice) |
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宇野祥平 as Kappa of Mabechigawa (voice) |
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富澤たけし as Kappa of Kitakamigawa (voice) |
| Writing | 吉田玲子 | Screenplay |
| Sound | 内田誠 | Sound Mixer |
| Visual Effects | 清水洋 | Character Designer |
| Sound | 宮内優里 | Original Music Composer |
| Sound | 塩塚モエカ | Theme Song Performance |
| Sound | 河西ゆりか | Theme Song Performance |
| Sound | フクダヒロア | Theme Song Performance |
| Art | 畠山佑貴 | Art Direction |
| Visual Effects | 清水洋 | Supervising Animation Director |
| Visual Effects | 高野慎也 | CGI Director |
| Production | 松尾拓 | Producer |
| Production | 竹枝義典 | Producer |
| Production | 岩崎紀子 | Producer |
| Visual Effects | 水野愛子 | Color Designer |
| Camera | 渡邉有正 | Director of Photography |
| Editing | 長谷川舞 | Editor |
| Sound | 木村絵理子 | Sound Director |
| Visual Effects | 大平晋也 | Key Animation |
| Visual Effects | 宮沢康紀 | Key Animation |
| Production | 高瀬透子 | Supervising Producer |
| Sound | 佐々木美行 | Foley Artist |
| Sound | 明妻恭平 | Foley Artist |
| Directing | 伊藤秀樹 | Second Unit Director |
| Directing | 高野やよい | Second Unit Director |
| Directing | 中谷亜沙美 | Second Unit Director |
| Visual Effects | 清水洋 | Animation Director |
| Production | 阿部奨子 | Production Manager |
| Production | 白鳥貴子 | Production Manager |
| Art | 枡野考平 | Title Designer |
| Visual Effects | 具志堅眞由 | Animation Director |
| Visual Effects | 郷津春奈 | Animation Director |
| Visual Effects | 小野田将人 | Animation Director |
| Visual Effects | Nozomi Ushijima | Animation Director |
| Visual Effects | 小松真梨子 | Animation Director |
| Visual Effects | 針場裕子 | Animation Director |
| Visual Effects | 西川絵奈 | Animation Director |
| Visual Effects | 川妻智美 | Animation Director |
| Art | 川妻智美 | Prop Designer |
| Visual Effects | 胡峰成 | Animation Director |
| Art | 近響子 | Prop Designer |
| Art | 中谷亜沙美 | Prop Designer |
| Art | 綱頭瑛子 | Art Designer |
| Art | 岩澤美翠 | Art Designer |
| Crew | 倉持美里 | Special Effects |
| Crew | 石橋啓 | Special Effects |
| Art | 毛塚沙織 | Assistant Director of Photography |
| Art | 川面真也 | Storyboard Artist |
| Visual Effects | Bahi JD | Key Animation |
| Visual Effects | 崎山北斗 | Key Animation |
| Visual Effects | 小栗寛子 | Key Animation |
| Visual Effects | 前原里恵 | Key Animation |
| Visual Effects | 志水よしこ | Key Animation |
| Visual Effects | 梅下麻奈未 | Key Animation |
| Directing | 川面真也 | Director |
| Writing | Sachiko Kashiwaba | Novel |
