Mei Nagano as Red Blood Cell

Takeru Satoh as White Blood Cell

Mana Ashida as Niko Urushizaki

Sadawo Abe as Shigeru Urushizaki

Koji Yamamoto as Killer T Cell

Riisa Naka as NK Cell

Wakana Matsumoto as Macrophage

Maika Pugh as Platelet

Shota Sometani as Helper T Cell

Kyoko Fukada as Hepatocyte

Rihito Itagaki as Red Blood Cell

Ryo Kato as Senior Red Blood Cell

Seishirou Katou as Shin Takeda

Ainosuke Kataoka as Pneumonia Coccus

Shinya Niiro as Streptococcus pyogenes

Maju Ozawa as Staphylococcus aureus

Fukase as Cancer Cell

Haru Iwakawa as Leukemia Cell as Myelocyte

Ken Mitsuishi as Trucking Company President

Shingo Tsurumi as Doctor