Season 1

Junya Enoki

Red Blood Cell (Erythrocite) (voice)

Yoko Hikasa

White Blood Cell (Neutrophil) (voice)

Kenjiro Tsuda

Narrator (voice)

KENN

Red Blood Cell (voice)

Lynn

White Bood Cell (Neutrophilic) (voice)

Yumi Uchiyama

White Bood Cell (Neutrophilic) (voice)

Takashi Narumi

Gastric Chief Cell (voice)

Yurika Kubo

Platelet (voice)

Hekiru Shiina

Macrophage (voice)

Sarah Emi Bridcutt

Liver Cell (voice)

Daisuke Hirakawa

Brain Cell (Command) (voice)