Character Name : Red Blood Cell AE3803 (Erythrocyte) (voice)

Original Name : 花澤香菜

Gender : Female

Character Name : White Blood Cell U-1146 (Neutrophil) (voice)

Original Name : 前野智昭

Gender : Male

Character Name : Cancer Cell (voice)

Original Name : 石田彰

Gender : Male

Character Name : Regulatory T Cell (voice)

Original Name : 早見沙織

Gender : Female

Character Name : Killer T Cell (voice) / Memory T Cell (voice)

Original Name : 小野大輔

Gender : Male

Character Name : NK Cell (voice)

Original Name : 行成とあ

Gender : Female

Character Name : Macrophage (voice)

Original Name : 井上喜久子

Gender : Female

Character Name : Platelet 'Leader' (voice)

Original Name : 長縄まりあ

Gender : Female

Character Name : Ordinary Cell (voice)

Original Name : 小林裕介

Gender : Male

Character Name : Black Lactic Acid Bacterium (voice)

Original Name : 吉田有里

Gender : Female

Character Name : Red Lactic Acid Bacterium (voice)

Original Name : 高橋李依

Gender : Female

Character Name : Panda Lactic Acid Bacterium (voice)

Original Name : 藤原夏海

Gender : Female

Character Name : Dappled Lactic Acid Bacterium (voice)

Original Name : 久保ユリカ

Gender : Female

Character Name : Narrator (voice)

Original Name : 能登麻美子

Gender : Female