Mr. Osomatsu 4th season

Mr. Osomatsu 4th season

おそ松さん 第4期

Watch Mr. Osomatsu 4th season full episodes online free in HD. Download Mr. Osomatsu 4th season English subbed and dubbed at AnimeFlix.

Status:Completed
Episodes:13
Type:TV
Released:Jul 09, 2025
Language:Japanese
Views:75
Studio:Pierrot Films
Season:2025
5.8 / 10

Synopsis

The sextuplets run amok for a fourth time! Now adults in their 20s, they are still unemployed, undertrained, and single…but there’s something lovable about Japan’s most famous sextuplets. As a new chaotic adventure begins, what’s next? New friends? New trouble? And perhaps a new side to the sextuplets? Let’s all laugh together with these brothers who are beyond any hope.



(Source: Crunchyroll)



Notes:

- Initially meant to air its episode 13 on October 1st, 2025, though instead aired an episode 12.5. After airing episode 12.5, the production stated the actual episode 13 was in production, however delayed indefinitely.

- The 13th episode was later announced as a part of the Osomatsu-san 10th anniversary event in 2026, where it first received a limited theatrical pre-screening between June 6th to June 11th, with a later early streaming release taking place from June 12th. It was then finally broadcast on June 13th, 2026.

Cast & Crew

Characters, voice actors & production staff
Cast 18
Jyushimatsu Matsuno

Jyushimatsu Matsuno

Main

Voiced by Daisuke Ono · Japanese

Ichimatsu Matsuno

Ichimatsu Matsuno

Main

Voiced by Jun Fukuyama · Japanese

Todomatsu Matsuno

Todomatsu Matsuno

Main

Voiced by Miyu Irino · Japanese

Choromatsu Matsuno

Choromatsu Matsuno

Main

Voiced by Hiroshi Kamiya · Japanese

Karamatsu Matsuno

Karamatsu Matsuno

Main

Voiced by Yuuichi Nakamura · Japanese

Osomatsu Matsuno

Osomatsu Matsuno

Main

Voiced by Takahiro Sakurai · Japanese

Totoko Yowai

Totoko Yowai

Supporting

Voiced by Aya Endou · Japanese

Iyami

Iyami

Supporting

Voiced by Kenichi Suzumura · Japanese

Chibita

Chibita

Supporting

Voiced by Sachi Kokuryuu · Japanese

Dayon

Dayon

Supporting

Voiced by Nobuo Tobita · Japanese

Dekapan

Dekapan

Supporting

Voiced by Youji Ueda · Japanese

Hatabou

Hatabou

Supporting

Voiced by Momoko Saitou · Japanese

Matsuyo Matsuno

Matsuyo Matsuno

Supporting

Voiced by Kujira · Japanese

Matsuzou Matsuno

Matsuzou Matsuno

Supporting

Voiced by Kazuhiko Inoue · Japanese

Narrator

Narrator

Supporting

Voiced by Hiroshi Kamiya · Japanese

Nyaa Hashimoto

Nyaa Hashimoto

Supporting

Voiced by Nanami Yamashita · Japanese

Shake

Shake

Supporting

Voiced by Kazutomi Yamamoto · Japanese

Ume

Ume

Supporting

Voiced by Kazutomi Yamamoto · Japanese

Crew 20
Fujio Akatsuka

Fujio Akatsuka

Original Creator

Yoshinori Odaka

Yoshinori Odaka

Director

Nene Futamura

Nene Futamura

Assistant Director

Shuu Matsubara

Shuu Matsubara

Series Composition

Eiji Abiko

Eiji Abiko

Character Design

Seiki Tamura

Seiki Tamura

Art Director

Yukiko Kakita

Yukiko Kakita

Color Design

Susumu Fukushi

Susumu Fukushi

Director of Photography

Kumiko Sakamoto

Kumiko Sakamoto

Editing

Hiromi Kikuta

Hiromi Kikuta

Sound Director

Yukari Hashimoto

Yukari Hashimoto

Music

Eiji Abiko

Eiji Abiko

Chief Animation Director

Kasumi Wada

Kasumi Wada

Chief Animation Director

Haru Watanabe

Haru Watanabe

Chief Animation Director

DA PUMP

DA PUMP

Theme Song Performance (OP)

m.c.A·T

m.c.A·T

Theme Song Lyrics (OP)

Yoshihiro Tominaga

Yoshihiro Tominaga

Producer

Hajime Nihira

Hajime Nihira

Key Animation (ep 9)

Valentio Krisnanda

Valentio Krisnanda

2nd Key Animation (ep 8)

Manaka Nitta

Manaka Nitta

2nd Key Animation (ep 8)