Isekai Quartet Season 1 • TV Show
Isekai Quartet • TV Show • Rating 6.8 out of 10
release-radar
When is the next season of Isekai Quartet coming out?
Isekai Quartet is listed as an ongoing series with a "Returning Series" production status, but the next episode or season has not yet been given a firm air date in the official schedule. The most recent episode aired on December 22, 2025, so any future release date is likely to fall after that. Looking at previous seasons, gaps between seasons have often been well over a year, so it may take some time before the next season arrives. When the next release does arrive, it is expected to carry the same content rating of TV-14 (US), which can influence when it airs on different providers and platforms.
trailers
Watch the official trailers for Isekai Quartet
Watch the main official trailer for Isekai Quartet in one place. Most of these clips were released around December 2019, capturing the show at its peak marketing push. Use the carousel to sample the show's visual style, story hooks and production quality before you dive into full episodes.
Uploaded in December 2019
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overview
What is Isekai Quartet about?
A mysterious switch appeared one day. Upon pressing it, they were sent to a different alternative world!! There are also characters from other alternative worlds gathered together...!? It blends comedy and animation elements. The series reflects a distinct Japan style and perspective.
release-timeline
Release pattern and schedule for Isekai Quartet
Isekai Quartet has been releasing episodes between April 2019 and December 2025 across 3 seasons. So far there are 35 released episodes, giving you plenty of story to catch up on before the next drop. Historically there have been longer waits of around 41 months between seasons, which can explain why some fans search early for hints about the next release. Until a new date appears, December 2025 remains the latest confirmed release window for the show.
cast
Cast and creators of Isekai Quartet
The main cast includes Aoi Yuuki, Jun Fukushima and Rie Takahashi. Behind the scenes, it is directed by Minoru Ashina.
Aoi Yuuki
as Tanya Degurechaff (voice)
Jun Fukushima
as Kazuma Satou (voice)
Rie Takahashi
as Emilia / Megumin (voice)
Saori Hayami
as Viktoriya Ivanovna 'Visha' Serebryakov (voice)
Satoshi Hino
as Momonga / Ains Oooal Gown (voice)
Sora Amamiya
as Aqua (voice)
Yumi Hara
as Albedo (voice)
Emiri Kato
as Aura Bella Fiora (voice)
Satomi Arai
as Beatrice (voice)
Ai Kayano
as Darkness (voice)
Akeno Watanabe
as Hamsuke (voice)
Aki Toyosaki
as Yunyun (voice)
Ayaka Suwa
as Chris (voice)
Chinatsu Akasaki
as Felt (voice)
Daichi Hayashi
as Shiner Neumann (voice)
Daiki Hamano
as Matheus Johann Weiss (voice)
Hiromi Igarashi
as Yuri Alpha (voice)
Hochu Otsuka
as Hans von Zettour (voice)
Inori Minase
as Rem (voice)
Jun Kasama
as Wilibald Koenig (voice)
Kenta Miyake
as Cocytus (voice)
Mamoru Miyano
as Pandora's Actor (voice)
Masakazu Nishida
as Vanir (voice)
Masayuki Katou
as Demiurge (voice)
Nobuo Tobita
as Adelheid von Schugel (voice)
Rie Murakawa
as Ram (voice)
Shin-ichiro Miki
as Erich von Rerugen (voice)
Sumire Uesaka
as Shalltear Bloodfallen (voice)
Takehito Koyasu
as Roswaal L. Mathers (voice)
Takuya Eguchi
as Julius Euclius (voice)
Tessyo Genda
as Kurt von Rudersdorf (voice)
Yuichi Nakamura
as Reinhard von Astrea (voice)
Yumi Uchiyama
as Mare Bello Fiore / Puck (voice)