Now in the anime’s 10th anniversary year, the first main trailer and key visual for One-Punch Man Season 3 was released today showcasing the aura of its many heroes. The new trailer confirms Season 3 will begin airing in October 2025.
One-Punch Man Season 3 Trailer
One-Punch Man Season 3 Key Visual (Strongest ver.)

The confirmed voice cast members include:
Saitama voiced by Makoto Furukawa
Genos voiced by Kaito Ishikawa
Terrible Tornado voiced by Aoi Yuki
Silverfang voiced by Kazuhiro Yamaji
Atomic Samurai voiced by Kenjiro Tsuda
Child Emperor voiced by Minami Takayam
King voiced by Hiroki Yasumoto
Zombieman voiced by Takahiro Sakurai
Pig God voiced by Daisuke Namikawa
Superalloy Blackluster voiced by Satoshi Hino
Flashy Flash voiced by Kosuke Toriumi
Puri-Puri Prisoner voiced by Masaya Onosaka
Handsome Kamen Amai Mask voiced by Mamoru Miyano
Hellish Blizzard voiced by Saori Hayami
Studio J.C.STAFF, which produced the second season of the One-Punch Man anime that adapts ONE’s (Mob Psycho 100) webcomic and Yusuke Murata’s (Eyeshield 21) serialized manga of the same name, returns to produce the third season. Tomohiro Suzuki works on the series composition, with Chikashi Kubota, Shinjiro Kuroda and Ryosuke Shirokawa serve as character designers and Makoto Miyazaki serving as music composer. A director was not announced at the time of reporting.
VIZ Media publishes the series in English and describes the story:
Every time a promising villain appears, Saitama beats the snot out of ’em with one punch! Can he finally find an opponent who can go toe-to-toe with him and give his life some meaning? Or is he doomed to a life of superpowered boredom?
Source: Comic Natalie