Kana Hanazawa

Red Blood Cell AE3803 (Erythrocyte) (voice)

前野智昭

White Blood Cell U-1146 (Neutrophil) (voice)

Akira Ishida

Cancer Cell (voice)

Saori Hayami

Regulatory T Cell (voice)

Daisuke Ono

Killer T Cell (voice) / Memory T Cell (voice)

Toa Yukinari

NK Cell (voice)

井上喜久子

Macrophage (voice)

長縄まりあ

Platelet 'Leader' (voice)

Yusuke Kobayashi

Ordinary Cell (voice)

吉田有里

Black Lactic Acid Bacterium (voice)

Rie Takahashi

Red Lactic Acid Bacterium (voice)

Natsumi Fujiwara

Panda Lactic Acid Bacterium (voice)

Yurika Kubo

Dappled Lactic Acid Bacterium (voice)

能登麻美子

Narrator (voice)

小倉宏文