Manga
Immature Thymus Cell 5 (Ep 9)
Cancer Cell (Ep 6-7) / Normal Cell (Ep 2-3)
Erythroblast (Ep 6)
Senpai Red Blood Cell
Mast Cell
Normal Cell 2 (Ep 4-5) / Red Blood Cell 2 (Ep 11) / Red Blood Cell 3 (Ep 2)
Hematopoietic Stem Cell 2 (Ep 6) / Platelet 3 (Ep 8) / Platelet 4 (Ep 2) / Red Blood Cell 2 (Ep 12) / Red Blood Cell 4 (Ep 1) / Red Blood Cell 9 (Ep 11)
Red Blood Cell 4 (Ep 2)
Killer T Cell
Red Bloodcell 1 (Ep 5)
Transfunded Red Blood Cell (Ep 13)
Pneumonia Coccus (Ep 1-2, 8)
Hematopoietic Stem Cell 3 (Ep 6)
Bacteria (Ep 2, 4, 8, 10-11)
Alimentary Canal Cell (Ep 7) / Normal Cell 1 (Ep 5) / Red Blood Cell 1 (Ep 1) / Red Blood Cell 3 (Ep 4, 11) / Sympathic Nerve Cell Leader (Ep 13) / Voice Over PA (Ep 8) / Voice Over PA 2 (Ep 12) / White Blood Cell (Neutrophil 2626)
Red Blood Cell (Erythrocite)
Macrophage
General Cell (Ep 4)
Bacillus Cereus (Ep 11)
Staphylococcus aureus
Immature Thymus Cell 3 (Ep 9)
Narrator
Platelet (Leader)
Immature Thymocyte 1 (Ep 9) / Regulatory T Cell 3 (Ep 5)
Streptococcus pyogenes (Ep 2, 8)
Immature Thymocyte 2 (Ep 9)
Naive T Cell (Ep 3)
Eosinophil
Dendritic Cell
Bacteria (Ep 12) / Pseudomonas aeruginosa (Ep 6)
Thymic Epithelial Cell (Ep 9)
Killer T Cell 2 (Ep 3) / Naive T Cell 3 (Ep 9) / Red Blood Cell 2 (Ep 6) / Red Blood Cell 7 (Ep 11) / White Blood Cell 1 (Ep 1)
Memory T Cell (Ep 3)
Regulatory T Cell
Teacher Neutrophil (Ep 6)
Killer T Cell 1 (Ep 3)
Cancer Cell 1 (Ep 7) / Red Blood Cell 1 (Ep 3, 11) / Red Blood Cell 2 (Ep 1)
Helper T Cell (T Lymphocyte)
NK Cell (Ep 6-7)
White Blood Cell (Neutrophil)
Basophil (Ep 4)
Rookie Red Cell (Ep 12-13)
Memory Cell
Nobuhiko Okamoto (Dendritic Cell)
Kikuko Inoue (Macrophage)
Kana Hanazawa (Red Blood Cell (Erythrocite))
Ryôta Takeuchi (Memory T Cell (Ep 3))
Riki Kitazawa
(Bacteria (Ep 12) / Pseudomonas aeruginosa (Ep 6))
Rolle: Pseudomonas aeruginosa
M·A·O (Eosinophil)
Mai Nakahara (Staphylococcus aureus)
Tomoaki Maeno (White Blood Cell (Neutrophil))
Tomokazu Sugita (Basophil (Ep 4))
Saori Hayami (Regulatory T Cell)
Hiroyuki Yoshino (Pneumonia Coccus (Ep 1-2, 8))
Yui Ishikawa (Rookie Red Cell (Ep 12-13))
Takahiro Sakurai (Helper T Cell (T Lymphocyte))
Ayako Kawasumi (Mast Cell)