Mr. Osomatsu Season 1 • TV Show
Mr. Osomatsu • TV Show • Rating 6.6 out of 10
seasons Season 1 
Season 2
Season 3
Season 4
Seasons of Mr. Osomatsu
Mr. Osomatsu currently has 4 seasons and 87 episodes. Most episodes run for around 25 minutes, which makes the show easy to binge in short bursts. The series is currently marked as "Returning Series". The most recently aired episode came out in 2026.
Mr. Osomatsu Season 2 • TV Show
Mr. Osomatsu Season 3 • TV Show
Mr. Osomatsu Season 4 • TV Show
release-radar
When is the next season of Mr. Osomatsu coming out?
Mr. Osomatsu 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 June 13, 2026, 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 Mr. Osomatsu
Watch the main official trailer for Mr. Osomatsu in one place. Most of these clips were released around October 2017, 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 October 2017
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release-timeline
Release pattern and schedule for Mr. Osomatsu
Mr. Osomatsu has been releasing episodes between October 2015 and September 2025 across 4 seasons. So far there are 87 released episodes, giving you plenty of story to catch up on before the next drop. Historically there have been longer waits of around 40 months between seasons, which can explain why some fans search early for hints about the next release. Until a new date appears, September 2025 remains the latest confirmed release window for the show.
cast
Cast and creators of Mr. Osomatsu
The main cast includes Takahiro Sakurai, Jun Fukuyama and Aya Endo.
Takahiro Sakurai
as Osomatsu Matsuno (voice)
Jun Fukuyama
as Ichimatsu Matsuno (voice)
Aya Endo
as Totoko (voice)
Yuichi Nakamura
as Karamatsu Matsuno (voice)
Kazuhiko Inoue
as Matsuzou Matsuno (voice)
Miyu Irino
as Todomatsu Matsuno (voice)
Hiroshi Kamiya
as Choromatsu Matsuno (voice)
Sachi Kokuryu
as Chibita (voice)
Kujira
as Matsuyo Matsuno (voice)
Daisuke Ono
as Juushimatsu Matsuno (voice)