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Kana Hanazawa as Red Blood Cell AE3803 (Erythrocyte) (voice) |
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Tomoaki Maeno as White Blood Cell U-1146 (Neutrophil) (voice) |
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Akira Ishida as Cancer Cell (voice) |
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Saori Hayami as Regulatory T Cell (voice) |
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Daisuke Ono as Killer T Cell (voice) / Memory T Cell (voice) |
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行成とあ as NK Cell (voice) |
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Kikuko Inoue as Macrophage (voice) |
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Maria Naganawa as Platelet 'Leader' (voice) |
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Yusuke Kobayashi as Ordinary Cell (voice) |
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吉田有里 as Black Lactic Acid Bacterium (voice) |
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Rie Takahashi as Red Lactic Acid Bacterium (voice) |
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Fujiwara Natsumi as Panda Lactic Acid Bacterium (voice) |
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Kubo Yurika as Dappled Lactic Acid Bacterium (voice) |
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Mamiko Noto as Narrator (voice) |
| Sound | 末廣健一郎 | Original Music Composer |
| Sound | MAYUKO | Original Music Composer |
| Visual Effects | 玉置敬子 | Supervising Animation Director |
| Writing | 柿原優子 | Series Composition |
| Visual Effects | 三室健太 | Character Designer |
| Visual Effects | 吉田隆彦 | Supervising Animation Director |
| Visual Effects | 三室健太 | Animation Director |
| Visual Effects | 北尾勝 | Supervising Animation Director |
| Writing | 柿原優子 | Screenplay |
| Directing | 小倉宏文 | Director |
| Visual Effects | 吉田隆彦 | Character Designer |
| Sound | 明田川仁 | Sound Director |
| Art | 三室健太 | Prop Designer |
| Visual Effects | 水野愛子 | Color Designer |
| Visual Effects | 石井規仁 | 3D Director |
| Editing | 廣瀬清志 | Editor |
| Camera | 大島由貴 | Director of Photography |
| Art | 曽野由大 | Art Designer |
