1. Bölüm

Daisuke Ono

Killer T Cell (voice)

井上喜久子

Macrophage (voice)

Maria Naganawa

Platelet 'Leader' (voice)

Takahiro Sakuray

Helper T Cell (voice)

Saori Hayami

Regulatory T Cell (voice)

遠藤綾

Senior Red Blood Cell AA5100 (voice)

佐藤健輔

White Blood Cell U-2048 (Neutrophil) (voice)

Kentaro Kumagai

White Blood Cell U-4989 (Neutrophil) (voice)

Ryota Suzuki

White Blood Cell 1 (Neutrophil) (voice)

柳田淳一

Red Blood Cell 1 (voice)

坂泰斗

Red Blood Cell 2 (voice)

江越彬紀

Red Blood Cell 3 (voice)

森永千才

Red Blood Cell 4 (voice)

春野杏

Platelet 'Sub-Leader' (voice)

赤尾ひかる

Platelet 2 (voice)

前田弘喜

Venous Valve Cell (voice)