Red Blood Cell AE3803 (Erythrocyte) (voice)
Kana Hanazawa
White Blood Cell U-1146 (Neutrophil) (voice)
Tomoaki Maeno
Red Lactic Acid Bacterium (voice)
Rie Takahashi
Panda Lactic Acid Bacterium (voice)
Natsumi Fujiwara
Dappled Lactic Acid Bacterium (voice)
Yurika Kubo
Narrator (voice)
Mamiko Noto
Cancer Cell (voice)
Akira Ishida
Regulatory T Cell (voice)
Saori Hayami
Killer T Cell (voice) / Memory T Cell (voice)
Daisuke Ono
NK Cell (voice)
Toa Yukinari
Macrophage (voice)
Kikuko Inoue
Platelet 'Leader' (voice)
Maria Naganawa
Ordinary Cell (voice)
Yusuke Kobayashi
Black Lactic Acid Bacterium (voice)
Yu-ri Yoshida
Original Music Composer
Kenichiro Suehiro
Director
Hirofumi Ogura
MAYUKO
Supervising Animation Director
Keiko Tamaki
Takahiko Yoshida
Animation Director
Kenta Mimuro
Series Composition
Yuko Kakihara
Masaru Kitao
Character Designer
Screenplay
Color Designer
Aiko Mizuno
Sound Director
Jin Aketagawa
Director of Photography
Yuki Oshima
Art Designer
Yoshihiro Sono
3D Director
Norihito Ishii
Editor
Kiyoshi Hirose
Prop Designer