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Tank Chair TV Anime Reveals Main Cast in Character Promo Video

The cast reveal confirms that Polygon Pictures is handling the 3DCG animation for a violent action premise centered on a comatose assassin who awakens only when targeted with killing intent, a concept that has already driven the manga past 1 million copies in circulation.

Key Facts

  • The Tank Chair TV anime revealed its main cast in a character promotional video.
  • Kōki Uchiyama voices Nagi Taira, the strongest assassin who fell into a coma protecting his sister.
  • Minori Fujidera plays Shizuka Taira, Nagi's younger sister who seeks to awaken him by exposing him to murderous intent.
  • Gakuto Kajiwara voices Naozumi Kurosaka, Nagi's former classmate with a rivalry against him, and Saori Hayami plays Touko Kurosaka, Naozumi's sister and partner.
  • The anime is produced by Polygon Pictures and is set to premiere in fall 2026.

Reporting from 7 sources: Anime News Network, Comic Natalie, Anime Hack (anime.eiga.com), Anime Trending, and 3 more.

Tank Chair TV Anime Reveals Main Cast in Character Promo Video

The television anime adaptation of Manabu Yashiro's manga Tank Chair has announced its main cast and released a character promotional video. The anime is set to premiere in fall 2026. Kōki Uchiyama voices Nagi Taira, the strongest assassin who fell into a coma protecting his sister. Minori Fujidera plays Shizuka Taira, Nagi's younger sister who seeks to awaken him by exposing him to murderous intent. Gakuto Kajiwara voices Naozumi Kurosaka, Nagi's former classmate with a rivalry against him, and Saori Hayami plays Touko Kurosaka, Naozumi's sister and partner. The anime is produced by Polygon Pictures, with Tadahiro Yoshihira and Hiroaki Ando directing and writing the script. Yūki Moriyama is designing the characters, and Masaru Yokoyama is composing the music. The manga, which began in 2022, has sold over 1 million copies worldwide and has 10 compiled volumes as of March 2026. Kodansha USA publishes the English version. The character promo video includes voiced scenes of the four main characters, and a visual of the Tank Chair Mark-1 combat wheelchair was also released.

The anime uses a pre-scoring recording format, meaning the voice actors record their lines before the animation is completed, rather than the more common post-recording method. Cast members commented on the approach, with Kōki Uchiyama noting that all the actors are approaching the project with "incredible concentration and passion."

Saori Hayami, who plays Touko Kurosaka, said that during her audition the script only contained the sound "shuu, shuu, shuu," which she found surprising. She described the pre-scoring format as a "new world" that she is now "savoring its depth and enjoying it with a good tension." Gakuto Kajiwara, voicing Naozumi Kurosaka, said he "squeeze[s] out my negative parts" to portray the character's anguish and anger.

Kazuma Teshigahara, who worked on Kaina of the Great Snow Sea, is credited for production design. The manga originally launched on Kodansha's Magazine Pocket service in November 2022 before moving to Monthly Shonen Sirius in November 2024. Kodansha USA published the eighth English volume on May 12, with the ninth volume scheduled for August 11. The anime's official X account is running a giveaway for signed colored paper from the main cast.

Synthesized by Yomimono from the 7 cited sources below, including Japanese-language reporting where cited, then editorially reviewed before publishing.

Tank Chair Kōki Uchiyama Minori Fujidera Gakuto Kajiwara Saori Hayami

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