Utowin (voice)

Minoru Hoshino (voice)

(voice)

Adventurers (voice)

Nameless (voice)

Novick (voice)

Soldier (voice)

Secretory Cell Captain (voice) / Red Blood Cell 8 (voice) / Pneumococcus 1 (Streptococcus Pneumoniae) (voice) / Thymic Epithelial Cell 1 (voice) / Red Blood Cell 4 (voice)

Brocken Jr. (voice)

Ryōhei Sudō (voice)