Kana Hanazawa
Red Blood Cell AE3803 (Erythrocyte) (voice)
21 episodes
Tomoaki Maeno
White Blood Cell U-1146 (Neutrophil) (voice)
21 episodes
Mamiko Noto
Narration (voice)
21 episodes
Kentaro Kumagai
White Blood Cell U-4989 (Neutrophil) (voice)
16 episodes
Daisuke Ono
Killer T Cell (voice) / Memory T Cell (voice)
14 episodes
Junichi Yanagita
White Blood Cell U-2626 (Neutrophil) (voice) / Red Blood Cell 3 (voice) / Ordinary Cell 1 (voice) / Gastrointestinal Cell (voice) / Announcement (voice) / Red Blood Cell 1 (voice) / Sympathetic Nerve Cell Captain (voice) / Announcement 2 (voice)
14 episodes
Maria Naganawa
Platelet 'Leader' (voice)
13 episodes
Kikuko Inoue
Macrophage (voice) / Macrophage / Monocyte (voice)
13 episodes
Akinori Egoshi
White Blood Cell U-2001 (Neutrophil) (voice) / Sweat Gland Cell Captain (voice) / Naive T Cell 4 (voice) / Red Blood Cell 3 (voice) / Regulatory T Cell 1 (voice) / Red Blood Cell 1 (voice) / Red Blood Cell 2 (voice) / Nerve Cell (voice)
12 episodes
Juri Kimura
Announcement (voice) / Red Blood Cell 3 (voice) / Regulatory T Cell 2 (voice) / Hematopoietic Stem Cell 1 (voice) / Macrophage 1 (voice) / Red Blood Cell 2 (voice) / Announcement 1 (voice) / Red Blood Cell 10 (voice) / Red Blood Cell 1 (voice)
12 episodes
Aya Endo
Senior Red Blood Cell AA5100 (voice)
11 episodes
Kensuke Sato
White Blood Cell U-2048 (Neutrophil) (voice)
11 episodes
Gakuto Kajiwara
Killer T Cell 1 (voice) / Red Blood Cell 1 (voice) / Gastrointestinal Cell (voice) / Naive T Cell 2 (voice) / Killer T Cell 2 (voice) / Ordinary Cell 1 (voice) / Red Blood Cell 5 (voice)
10 episodes
Manaka Iwami
Platelet 'Backwards Cap' (voice)
9 episodes
Takahiro Sakurai
Helper T Cell (voice)
8 episodes
Akira Ishida
Cancer Cell (voice) / Ordinary Cell (voice)
8 episodes
Shoya Chiba
B Cell (voice)
8 episodes
Anzu Haruno
Platelet 'Sub-Leader' (voice) / Red Blood Cell 3 (voice) / Red Blood Cell 4 (voice)
8 episodes
Chitose Morinaga
Platelet 'Kyoro-Eyes' (voice) / Red Blood Cell 4 (voice) / Red Blood Cell 2 (voice) / Hematopoietic Stem Cell 2 (voice) / Red Blood Cell 9 (voice)
8 episodes
Toa Yukinari
NK Cell (voice)
7 episodes
Saori Hayami
Regulatory T Cell (voice) / Regulatory T Cell / Immature Thymocyte (voice)
7 episodes
Yuka Nukui
Macrophage 1 (voice) / Red Blood Cell 2 (voice) / Sweat Gland Cell 1 (voice) / Macrophage 2 (voice)
7 episodes
Hiroki Maeda
Venous Valve Cell (voice) / Ordinary Cell 1 (voice) / Ordinary Cell 3 (voice) / Cancer Cell 3 (voice) / Ordinary Cell 4 (voice)
7 episodes
Ryota Suzuki
Killer T Cell 3 (voice) / Killer T Cell 1 (voice) / Killer T Cell 2 (voice) / Red Blood Cell 7 (voice) / Red Blood Cell 2 (voice) / White Blood Cell 1 (Neutrophil) (voice) / Naive T Cell 3 (voice)
7 episodes
Jun Fukushima
Bacterium (voice) / Mumps Virus (voice) / Helicobacter Pylori (voice)
7 episodes
Taito Ban
Red Blood Cell 1 (voice) / Red Blood Cell 2 (voice) / Intestinal Epithelial Cell (voice) / Cancer Cell 1 (voice)
5 episodes
Jun Kasama
Red Blood Cell 4 (voice) / Thymic Epithelial Cell 1 (voice) / Red Blood Cell 8 (voice) / Secretory Cell Captain (voice) / Pneumococcus 1 (Streptococcus Pneumoniae) (voice)
5 episodes
Chiaki Kobayashi
Ordinary Cell 2 (voice) / Red Blood Cell 2 (voice) / Red Blood Cell 1 (voice) / Red Blood Cell 3 (voice)
5 episodes
Yui Ishikawa
Junior Red Blood Cell NT4201 (voice)
5 episodes
Yusuke Kobayashi
Ordinary Cell (voice)
5 episodes
Yu-ri Yoshida
Black Lactic Acid Bacterium (voice)
5 episodes
Nobuhiko Okamoto
Dendritic Cell (voice)
4 episodes
Mēmu Tachibana
Platelet 'Sotohane-Hair' (voice)
4 episodes
Mao Ichimichi
Eosinophil (voice)
4 episodes
Ayako Kawasumi
Mast Cell (voice)
4 episodes
Yuichi Nakamura
Memory Cell (voice)
4 episodes
Riki Kitazawa
Pseudomonas Aeruginosa (voice) / Bacterium (voice)
4 episodes
Rikuya Yasuda
Ordinary Cell 2 (voice) / Red Blood Cell 2 (voice) / Red Blood Cell 1 (voice) / White Blood Cell 1 (Neutrophil) (voice)
4 episodes
Hiroyuki Yoshino
Pneumococcus (Streptococcus Pneumoniae) (voice)
3 episodes
Daiki Kobayashi
Campylobacter (voice)
3 episodes
Rie Takahashi
Red Lactic Acid Bacterium (voice)
3 episodes
Eiji Takemoto
Intestinal Epithelial Cell (voice)
3 episodes
Shinji Kawada
Goblet Cell (voice)
3 episodes
Yoshitsugu Matsuoka
Harmful Bacterium 1 (voice)
3 episodes
Yasuhiro Mamiya
Harmful Bacterium 2 (voice)
3 episodes
Hikaru Akao
Platelet 2 (voice) / Platelet 5 (voice)
2 episodes
Mai Nakahara
Staphylococcus Aureus (voice)
2 episodes
Masaya Matsukaze
Streptococcus Pyogenes (voice)
2 episodes
Tomokazu Sugita
Basophil (voice)
2 episodes
Gen Sato
Red Blood Cell 1 (voice)
2 episodes
Mariko Higashiuchi
Regulatory T Cell 3 (voice) / Immature Thymocyte 1 (voice)
2 episodes
Sho Nogami
Red Blood Cell 2 (voice) / Ordinary Cell 2 (voice)
2 episodes
Shota Yamamoto
Killer T Cell 2 (voice) / Killer T Cell 1 (voice)
2 episodes
Shuichi Uchida
Small Intestine Cell 1 (voice) / Red Blood Cell 2 (voice)
2 episodes
Takayuki Kondo
Transfused Red Blood Cell DB5963 (voice)
2 episodes
Aya Yamane
Large Intestine Cell 1 (voice) / Platelet 2 (voice)
2 episodes
Natsumi Fujiwara
Panda Lactic Acid Bacterium (voice)
2 episodes
Yurika Kubo
Dappled Lactic Acid Bacterium (voice)
2 episodes
Kousuke Oonishi
Intestinal Epithelial Cell 1 (voice)
2 episodes
Daiki Hamano
Red Blood Cell 4 (voice)
1 episode
Mutsumi Tamura
Naive T Cell (voice)
1 episode
Kenji Nomura
Effector T Cell (voice)
1 episode
Ryota Takeuchi
Memory T Cell (voice)
1 episode
Kohei Amasaki
Ordinary Cell 1 (voice)
1 episode
Itaru Yamamoto
Vibrio Parahaemolyticus (voice)
1 episode
Teppei Uenishi
Ordinary Cell 3 (voice)
1 episode
Taichi Ichikawa
Ordinary Cell 5 (voice)
1 episode
Kazuyuki Okitsu
Cedar Pollen (voice)
1 episode
Tomo Muranaka
White Blood Cell U-1146 (Myelocyte) (voice)
1 episode
Satoshi Hino
White Blood Cell Teacher 'Mr. Neutrophil' (voice)
1 episode
Yu Sasahara
Red Blood Cell 1 (voice)
1 episode
Ikumi Hasegawa
Hematopoietic Stem Cell 3 (voice)
1 episode
Asuna Tomari
Erythroblast (voice)
1 episode
Ayaka Suwa
Immature Cancer Cell 1 (voice)
1 episode
Yuna Yoshino
Immature Cancer Cell 2 (voice)
1 episode
Kaito Takeda
Cancer Cell 2 (voice)
1 episode
Aoi Ichikawa
Red Blood Cell 1 (voice)
1 episode
Shizuka Ishigami
'Circulation' the PSA Mascot (voice)
1 episode
Mikako Komatsu
Immature Thymocyte 2 (voice)
1 episode
Rikiya Koyama
Thymic Epithelial Drill Sergeant (voice)
1 episode
Yuuki Shin
Naive T Cell 1 (voice)
1 episode
Yu Akiba
Naive T Cell 5 (voice)
1 episode
Masaya Fukunishi
Naive T Cell 6 (voice)
1 episode
Makoto Koichi
Immature Thymocyte 3 (voice)
1 episode
Natsumi Kawaida
Immature Thymocyte 4 (voice)
1 episode
Aimi Tanaka
Immature Thymocyte 5 (voice)
1 episode
Daiki Kajimoto
Red Blood Cell 6 (voice)
1 episode
Kohsuke Toriumi
Bacillus Cereus (voice)
1 episode
Hironori Saitoh
Transfused Red Blood Cell 2 (voice)
1 episode
Naoko Komatsu
Transfused Red Blood Cell 3 (voice)
1 episode
Yuhko Kaida
Megakaryocyte (voice)
1 episode
Satomi Amano
Platelet 1 (voice)
1 episode
Nao Shiraki
Platelet 3 (voice)
1 episode
Emiri Suyama
Platelet 4 (voice)
1 episode
Saya Tanaka
Platelet 5 (voice)
1 episode
Hitomi Sekine
Platelet 6 (voice)
1 episode
Masamu Ono
Ordinary Cell 1 (voice)
1 episode
Yumiko Kobayashi
'Lovely' Bacterium (voice)
1 episode
Show Hayami
M Cell (voice)
1 episode
Hinata Tadokoro
White Blood Cell 1 (Neutrophil) (voice)
1 episode
Yu Okano
Ordinary Cell 1 (voice)
1 episode
Tasuku Kida
Ordinary Cell 2 (voice)
1 episode
Hitomi Sasaki
Macrophage 1 (voice)
1 episode
Yuya Hirose
Red Blood Cell 1 (voice)
1 episode
Hayato Komiya
Red Blood Cell 2 (voice)
1 episode
Atsushi Tamaru
Ordinary Cell 1 (voice)
1 episode
Ryota Iwasaki
Ordinary Cell 3 (voice)
1 episode
Motomu Kiyokawa
Langerhans Cell (voice)
1 episode
Miyuri Shimabukuro
Hair Matrix Cell Boy (voice)
1 episode
Mugihito
Hair Matrix Cell Elder (voice)
1 episode
Rie Kawamura
Pigment Cell (voice)
1 episode
Shin Matsushige
Acne Bacteria King (voice)
1 episode
Daichi Hayashi
Acne Bacterium 1 (voice)
1 episode
Yoshihito Sasaki
Killer T Cell 1 (voice)
1 episode
Kouichi Souma
Small Intestine Cell Chief (voice)
1 episode
Atsushi Taniguchi
Small Intestine Cell 2 (voice)
1 episode
Eri Yukimura
Macrophage 2 (voice)
1 episode
Yudai Mino
Ordinary Cell 1 (voice)
1 episode
Yuki Otani
Ordinary Cell 2 (voice)
1 episode
Hayato Kimura
Ordinary Cell 3 (voice)
1 episode
Shinei Ueki
Influenza Virus (voice)
1 episode
Shoya Ishige
Killer T Cell 4 (voice)
1 episode
Shogo Sakata
Large Intestine Cell 2 (voice)
1 episode
Reigo Yamaguchi
Thymocyte 1 (voice)
1 episode
Satoshi Nozawa
Thymocyte 2 (voice)
1 episode
Yukari Tamura
Opportunistic Bacterium 1 (voice)
1 episode
Fairouz Ai
Opportunistic Bacterium 2 (voice)
1 episode
Takehiro Jizodo
Opportunistic Bacterium 3 (voice)
1 episode
