• 
  D.C. Douglas

  3 episodes, 2018
• 
  Mamiko Noto

  14 episodes, 2018
• 
  Griffin Burns

  14 episodes, 2018
• 
  Morgan Berry

  14 episodes, 2018
• 
  Karen Strassman

  19 episodes, 2018-2019
• 
  Kana Hanazawa

  unknown episodes
• 
  Kikuko Inoue

  Macrophage
• 
  Cherami Leigh

  14 episodes, 2018

• 
  Takahiro Sakurai

  7 episodes, 2018
• 
  Chiaki Kobayashi

  6 episodes, 2018
• 
  Bill Rogers

  14 episodes, 2018
• 
  Daisuke Ono

  Killer T Cell
• 
  Aya End

  Senpai Red Blood Cell
• 
  Ray Chase

  14 episodes, 2018
• 
  Robbie Daymond

  14 episodes, 2018

• 
  Tomoaki Maeno

  White Blood Cell (Neutrophil)
• 
  Saori Hayami

  6 episodes, 2018
• 
  Deneen Melody

  14 episodes, 2018
• 
  Xanthe Huynh

  14 episodes, 2018
• 
  Laura Megan Stahl

  14 episodes, 2018
• 
  Laura Post

  14 episodes, 2018
• 
  Chris Tergliafera

  14 episodes, 2018
• 
  Junichi Yanagita

  White Blood Cell (2626)
• 
  Erik Scott Kimerer

  14 episodes, 2018
• 
  Kensuke Satou

  10 episodes, 2018
• 
  Erika Harlacher

  14 episodes, 2018
• 
  Armen Taylor

  14 episodes, 2018
• 
  Erica Mendez

  14 episodes, 2018
• 
  Hiroki Maeda

  Common Cell 1
• 
  Khoi Dao

  14 episodes, 2018
• 
  Shôya Chiba

  6 episodes, 2018
• 
  Maria Naganawa

  Platelet
• 
  Billy Kametz

  14 episodes, 2018
• 
  Juri Kimura

  11 episodes, 2018
• 
  Landon McDonald

  14 episodes, 2018
• 
  Kellen Goff

  14 episodes, 2018
• 
  Darrel Delfin

  14 episodes, 2018
• 
  Chitose Morinaga

  Hematopoietic Stem Cell 2
• 
  Akinori Egoshi

  White Blood Cell (2001)
• 
  Kayli Mills

  14 episodes, 2018
• 
  Kentarô Kumagai

  10 episodes, 2018
• 
  Christian La Monte

  14 episodes, 2018
• 
  Yuka Nukui

  6 episodes, 2018
• 
  Anzu Haruno

  Platelet 1
• 
  Gakuto Kajiwara

  7 episodes, 2018
• 
  Ryouta Suzuki

  6 episodes, 2018
• 
  Junichi Yanagita

  White Blood Cell (2626)
• 
  Ray Carsillo

  14 episodes, 2018
• 
  Junichi Yanagita

  12 episodes, 2018
• 
  Dorah Fine

  14 episodes, 2018