Tank Chair reveals Megumi Ogata as Sensei in new trailer

The Tank Chair anime has given up its last secret. The production published Main PV No. 2 on 17 September and used it to unmask Sensei, the character whose performer it had refused to name, with Megumi Ogata — the voice of Shinji Ikari in Neon Genesis Evangelion and of Yuta Okkotsu in Jujutsu Kaisen — taking the part. The character speaks for the first time in the trailer, and the series itself begins on 4 October.

It is a casting decision that reframes the story's villain problem. Sensei is not another brawler queued up for Nagi Taira to fight. The production describes the character as an absolute ruler with bottomless cruelty and overwhelming power, the one figure who holds the key to everything, and it had kept that role dark while it paraded the rest of the cast. Holding a name back until two and a half weeks before transmission is a deliberate piece of theatre, and it worked: the reveal arrived with an autographed-board giveaway attached.

Who is Sensei, and what did Megumi Ogata say about the role?

Sensei is the masked ruler of the wrecked city Nagi and Shizuka fight through, and the trailer frames the character as the wall the siblings are walking towards rather than an obstacle on the way. Ogata said the part was unlike anything she had been asked to play, describing a second-round audition in which she was told to throw away everything she had built in the first one and to speak in a way that made her words incomprehensible. She also noted that Tank Chair is her first television series recorded with full prescoring, the technique of laying down dialogue before animation exists. Ogata joins a cast list that now reads as a generational spread, from Kōki Uchiyama and Saori Hayami through to veterans Nobuyuki Hiyama, Yoshitada Ōtsuka and Tetsu Inada.

When does *Tank Chair* start, and where can you watch it?

Transmission begins on Sunday 4 October. TOKYO MX has it at 23:00 JST with BS11 following at 24:30, which is 12:30 on Monday morning. CBC picks it up on Monday 5 October, MBS on Tuesday 6 October, and the announcement also confirmed AT-X, which starts on Tuesday 6 October at 22:00 and adds two repeat slots a week. Those are Japanese broadcast times, down to the minutes.

Streaming is where the show becomes genuinely easy to follow. Prime Video holds an unlimited early window from Sunday 4 October at 23:30 JST, half an hour after the television broadcast, so each episode lands the same night. Everything else — Anime Hōdai, FOD, J:COM STREAM, TELASA, d Anime Store, DMM TV, NicoNico Channel, Bandai Channel, Hulu, milplus and U-NEXT — opens on Wednesday 7 October at 23:30 JST, with individual rentals the same week at ¥220 for a 72-hour window. No international broadcaster or streaming service has been named, so the caveat stands: these are Japanese platforms and Japanese dates.

What is *Tank Chair* actually about?

Nagi Taira is a hitman who takes a bullet meant for his sister and does not wake up. What brings him back is killing intent: the stronger the murderous attention aimed at him, the more completely he surfaces. So Shizuka, his sister, does the only thing that follows from that logic — she wheels him around a ruined city looking for people who want him dead, and calls it rehabilitation. It is a revenge-of-the-body premise built by Yashiro Manabu, whose manga runs in Kodansha's Monthly Shōnen Sirius and whose earlier serialisation history includes a run on Apple Books before the magazine move.

Who is making it?

Polygon Pictures is animating, which is the detail that explains why the trailer moves the way it does. The studio behind Knights of Sidonia, Star Wars: Visions and Spider-Man: Friendly Neighborhood Spider-Man works in CG, and Tank Chair is the sort of material that rewards it: junk-drawn chairs, grotesque creatures and crowded dystopian streets. Tadahiro "Tady" Yoshihira and Hiroaki Ando direct and share series composition and scripts, Yūki Moriyama handles character design, and Masaru Yokoyama — a composer with an enormous anime résumé — writes the score.

What else arrived with the announcement?

A full music plan, for one thing. SiM's "DALALA" is the opening theme, taken from the band's album HOOMAN AFTER ALL, and Daoko sings the ending, "SYNC", written by Daoko with Haraguchi Sasuke composing and arranging. The ending arrives digitally on 4 October at 24:00 JST, which is midnight as Monday 5 October begins, and its cover is a new illustration by Yashiro Manabu himself. There is also a preview screening and talk event at Ikebukuro HUMAX Cinemas on 24 September, screening the first two episodes with Ogata added to a panel that already included Uchiyama, Fujidera and both directors. Tickets sold out.

Our opinion

The Sensei reveal is the most interesting thing Tank Chair has done, and it is not really about star power. Casting Ogata as an unknowable, almost inhuman authority sets the show against its own genre's habits: the flamboyant antagonist who gets a monologue, a theme tune and a merchandise line. Ogata's gift has always been making interior damage audible, and putting that behind a mask that never comes off is a promise the series now has to keep. The scheduling is the other reason to pay attention. Half an hour between broadcast and a Prime Video upload, with eleven other services a few days behind, is a distribution plan that treats the audience as adults and quietly kills the excuse that this show is hard to find. The disappointment is that all of it points inward. There is still no international licence, no subtitled release date and no way for anyone outside Japan to watch a series that Polygon Pictures has clearly made for a global audience. That gap is the story's real cliffhanger.