The Osomatsu-san property has had a good resurgence over the past decade with TV seasons in 2015, 2017, and 2020 as well as a pair of theatrical films. We learned in June 2024 that the property is coming back for a fourth season with the main cast reprising their roles. Yoshinori Odaka is back to direct the season from the scripts overseen by Shu Matsubara. Eiji Abiko is handling the character designs.
The series was recently updated with plans for a July 2025 debut for the new season. Now, as we get closer to it, a new promotional video and a key visual have been revealed below that comes alongside a July 8th, 2025 premiere date.
The series stars Takahiro Sakurai as the eldest son Osomatsu, Yūichi Nakamura as the second son Karamatsu, Hiroshi Kamiya as the third son Choromatsu, Jun Fukuyama as the fourth son Ichimatsu, Daisuke Ono as the fifth son Jūshimatsu, Miyu Irino as the sixth and youngest son Todomatsu, Aya Endo as the heroine Totoko, Kenichi Suzumura as Iyami and Sachi Kokuryu as Chibita.
Based on the manga by Fujio Akatsuka that ran from 1962 to 1969 and had a couple of revivals along the way, it had an adaptation in the mid 60′s and then a remake in the late 80′s. This series is serving as a sequel to it with the same animation studio from the 80′s involved, albeit with a new creative team. The original series focused on the six kids when they were young but this one takes a look at them as adults now and how their lives turned out.
The English dub cast includes Billy Kametz as Osomatsu, Ray Chase as Karamatsu, Sean Chiplock as Choromatsu, Kyle McCarley as Ichimatsu, Michael Sinterniklaas as Jyushimatsu, Max Mittelman as Todomatsu, Alejandra E. Cazares as Chibita, Cassandra Lee Morris as Totoko, Keith Silverstein as Iyami, and Cherami Leigh as Hatabou.
Plot Concept: The Matsuno household has six naughty and mischievous sons (who are sextuplets), led by the eldest, Osomatsu. They may have been grade schoolers since the Shōwa period, and they may still live in the same house, but modern day society has certainly changed around them.
Previous 4th season promos and visuals:
