White Blood Cell (U-1146)

Played by Tomoaki Maeno · Cells at Work! · Seasons 1-2 (2018-2021)
animewhite-blood-cellneutrophilimmune-system
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Fan Heat
By the TVCeleb Editorial Team Last updated How we research & score

Character Arc

U-1146 is a White Blood Cell, specifically a neutrophil, whose job is to seek out and destroy bacteria, viruses, and other invaders before they can harm the body. Dressed in a stark white uniform that is constantly splattered during his battles, he is calm, focused, and utterly committed to his duty. His unflappable professionalism makes him the reliable defender that the rest of the cells depend on.

Beneath his serious exterior, U-1146 has a gentle and protective side that surfaces most clearly around AE3803. He repeatedly appears just in time to save her from germs she stumbles into, and these rescues build a tender, understated friendship that runs through the entire series. He treats every threat to the body, large or small, with the same unwavering seriousness.

As the show progresses, U-1146 stands at the center of its biggest action set pieces, coordinating with Killer T Cells, Macrophages, and other immune cells to repel major infections. He embodies the idea that the immune system is a tireless, around-the-clock workforce, and his quiet heroism gives the comedy real emotional stakes.

Key Episodes

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Cells at Work! — Wikipedia
Background and cast

Fan Heat Index Breakdown

Engagement
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Cells at Work!

Red Blood Cell (AE3803)

Played by Kana Hanazawa

Seasons 1-2 (2018-2021) 0
Cells at Work!

Killer T Cell

Played by Daisuke Ono

Seasons 1-2 (2018-2021) 0

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Character Analysis & Cultural Significance

White Blood Cell (U-1146) is one of the central figures in Cells at Work!, a anime/comedy/educational/action series that aired on Kodansha / David Production from 2018-2021. Within the narrative of Cells at Work!, White Blood Cell (U-1146) serves as a pivotal character whose decisions and relationships drive key story arcs throughout Seasons 1-2 (2018-2021). The character's journey has been central to many of the show's most memorable and discussed moments.

Portrayed by Tomoaki Maeno, White Blood Cell (U-1146) has become one of the most recognizable characters in modern television. Tomoaki Maeno's performance brings nuance and depth to the role, creating a character that resonates with audiences on both intellectual and emotional levels. The casting of Tomoaki Maeno has been widely praised by both critics and fans as essential to the character's impact and the show's success.

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? Frequently Asked Questions

U-1146 is a neutrophil, a type of white blood cell that patrols the body and destroys invading bacteria and viruses. He is one of the front-line defenders of the immune system in the series.

U-1146 and AE3803 share a warm, understated friendship. He often saves her from germs during her deliveries, and their bond gives the show its emotional core.