花澤香菜
Red Blood Cell AE3803 (Erythrocyte) (voice)
前野智昭
White Blood Cell U-1146 (Neutrophil) (voice)
早見沙織
Regulatory T Cell (voice)
小野大輔
Killer T Cell (voice) / Memory T Cell (voice)
Maria Naganawa
Platelet 'Leader' (voice)
吉田有里
Black Lactic Acid Bacterium (voice)
高橋李依
Red Lactic Acid Bacterium (voice)
藤原夏海
Panda Lactic Acid Bacterium (voice)
久保ユリカ
Dappled Lactic Acid Bacterium (voice)