© Nigojuu Umibozu / KADOKAWA / Tanmoshi Production Committee
The Monthly Comic Alive magazine manga Tantei wa Mō, Shindeiru, aka The Detective Is Already Dead, got the nod for an anime adaptation quite some time ago, as it saw a July 4th, 2021, debut. We learned all the way back in July 2022 that a second season is coming, and in September 202,4 we had a teaser and confirmation that it was still in production.
We learned in November 2025 that the new season was set for a July 2026 debut, some four years since the first season. Then, in March 2026, word came down that due to various production issues, the series is being pushed back to an October 2026 debut. The show has now gotten its first update regarding it with a new promo and key visual to show what the team is working on.
© Nigojuu Umibozu / KADOKAWA / Tanmoshi Production Committee
The series was directed by Manabu Kurihara with scripts by Deko Akao. Yosuke Ito was on board for the character designs with ENGI handling the animation production.
The Japanese cast includes Shin Nagai as Kimihiko Kimizuka, Saki Miyashita as Siesta, Ayana Taketatsu as Nagisa Natsunagi, Kanon Takao as Yui Saikawa, Saho Shirasu as Charlotte Arisaka Anderson, Yoshitsugu Matsuoka as Kōmori, Takehito Koyasu as Chameleon, Maria Naganawa as Alicia, and Mai Fuchigami as Fūbi Kase.
The series has Austin Tindle and Morgan Laure as the ADR directors with Marcus Stimac as the assistant director. The English cast includes Austin Tindle as Kimizuka, Xanthe Huynh as Siesta, Arryn Zech as Nagisa, Kayleigh McKee as Bat, and Jād Saxton as Yui.
The light novel series from Nigoju and Umibozu began in 2019 and has four volumes out so far. A manga adaptation began in May 2020 with one volume out so far.
Check out the official site and Twitter.
Plot Concept: The story focuses on Kimihiko Kimizuka, a third-year high school student and former assistant of a detective named Siesta. He made Siesta’s acquaintance three years ago, 10,000 meters above the ground in a hijacked plane. The two went on one death-defying adventure after another for three years that eventually ended with Siesta’s untimely death. Left alone, Kimihiko tries his best to reintegrate himself back into a normal life.
2nd season promos and visuals:
© Nigojuu Umibozu / KADOKAWA / Tanmoshi Production Committee
© Nigojuu Umibozu / KADOKAWA / Tanmoshi Production Committee
1st season promos & visuals:
© Nigojuu Umibozu / KADOKAWA / Tanmoshi Production Committee
© Nigojuu Umibozu / KADOKAWA / Tanmoshi Production Committee
© Nigojuu Umibozu / KADOKAWA / Tanmoshi Production Committee
【キャラクター設定絵を公開！①】
■君塚君彦（CV: 長井新）
自称≪巻き込まれ体質≫の少年。
シエスタと出会い、彼女の助手となり、そして死に別れた。#たんもし pic.twitter.com/pR9mg8RZGt
— 『探偵はもう、死んでいる。』公式@原作小説13巻発売中【アニメ第2期2026年10月放送決定】 (@tanteiwamou_) January 20, 2021
【キャラクター設定絵を公開！②】
■シエスタ（CV: 宮下早紀）
才色兼備にして天衣無縫の名探偵。
1年前まで、助手である君塚と世界の旅を続けていた。故人。#たんもし pic.twitter.com/qNqE46xtHo
— 『探偵はもう、死んでいる。』公式@原作小説13巻発売中【アニメ第2期2026年10月放送決定】 (@tanteiwamou_) January 20, 2021
【キャラクター設定絵を公開！③】
■夏凪渚（CV: 竹達彩奈）
シエスタの死から1年後、君塚の前に現れた同級生の少女。
君塚にとある依頼を持ち掛けてくる。#たんもし pic.twitter.com/kKEUYk3q9b
— 『探偵はもう、死んでいる。』公式@原作小説13巻発売中【アニメ第2期2026年10月放送決定】 (@tanteiwamou_) January 20, 2021
【キャラクター設定絵を公開！④】
■斎川唯（CV: 高尾奏音）
女子中学生ながら、老若男女問わず人気の国民的アイドル。
愛称は「唯にゃ」。君塚にある依頼をする。#たんもし pic.twitter.com/8qICR0W60y
— 『探偵はもう、死んでいる。』公式@原作小説13巻発売中【アニメ第2期2026年10月放送決定】 (@tanteiwamou_) January 20, 2021
【キャラクター設定絵を公開！⑤】
■シャーロット・有坂・アンダーソン（CV: 白砂沙帆）
シエスタを慕い、弟子を自称していた少女。
武闘派のエージェントで、君塚とは旧知の仲。#たんもし pic.twitter.com/6agTgXMfaS
— 『探偵はもう、死んでいる。』公式@原作小説13巻発売中【アニメ第2期2026年10月放送決定】 (@tanteiwamou_) January 20, 2021
Chris Beveridge
http://www.fandompost.com
Chris has been writing about anime, manga, movies and comics for well on twenty years now. He began AnimeOnDVD.com back in 1998 and has covered nearly every anime release that’s come out in the US ever since.
He likes to write a lot, as you can see.
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