The official Hotel Inhumans website added Mitsuki Saiga to the second season's cast on October 29. She plays Sekiya, a woman who keeps turning up on the train reading books about murder and poison. In a show about a hotel for assassins, that's not a subtle tell.
Quick answer
Hotel Inhumans Season 2 premiered on October 4, 2026 on TV Tokyo at 11:45 p.m. JST, also airing on BS TV Tokyo and AT-X. Tetsuro Amino directs at Bridge, with its subsidiary Isle credited for production. New cast members are Mitsuki Saiga (Sekiya), Hina Yomiya (Shiba Kirihara) and Shōya Chiba (Subaru Yoda). Crunchyroll streamed Season 1, which scores 6.54 on SenpaiRanks.
The new face
Saiga is a veteran voice, and the casting suits a character introduced only through her reading habits. The site hasn't said how Sekiya connects to the hotel. Given the setup, guests and staff who look ordinary rarely are.
Production notes
The season keeps the Season 1 team: Shoji Yonemura (*Parasyte -the maxim-*) on scripts, Shingo Fujisaki on character designs, Haru Yamada on sound and Koharu of Charan-Po-Rantan on music. GAN (Takanori Iwata) sings the opening, "Rasen," and Phantom Siita sings the ending, "Sweet Pea." Yūsuke Kobayashi and Hinano Shirahama return as concierges Ikurō Hoshi and Sara Haizaki.
Here's the first season's trailer if you're catching up:
Where it comes from
Ao Tajima's manga ran on Shogakukan's Sunday Webry from June 2021 and finished with its 12th volume in September 2025, so the anime has a complete story to adapt. Seven Seas publishes it in English.
Our Season 2 premiere guide has the broadcast details, and the fall 2026 premiere calendar lists the rest of the season.
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Frequently asked questions
Q: Who does Mitsuki Saiga play in Hotel Inhumans?
A: Sekiya, a woman often seen on the train reading books about murder or poison.
Q: When did Hotel Inhumans Season 2 premiere?
A: October 4, 2026, on TV Tokyo.
Q: Which studio makes Hotel Inhumans Season 2?
A: Bridge, with its subsidiary Isle, under director Tetsuro Amino.
Q: Is the Hotel Inhumans manga finished?
A: Yes. It ended with its 12th volume in September 2025.