It has been announced that the second season of the One-Punch Man anime is scheduled to premiere in Japan in April 2019.
JAM Project is performing the opening theme song for the second season.
The main cast members are reprising their roles in the second season:
- Makoto Furukawa is Saitama
- Kaito Ishikawa is Genos
- Yuuki Kaji is Onsoku no Sonic (Speed-o’-Sound Sonic)
- Aoi Yūki is Senritsu no Tatsumaki (Terrible Tornado)
- Kazuhiro Yamaji is Silverfang
- Kenjiro Tsuda is Atomic Samurai
- Minami Takayama is Dōtei (Child Emperor)
- Tesshō Genda is Metal Knight
- Hiroki Yasumoto is King
- Takahiro Sakurai is Zombieman
- Yōji Ueda is Kudō Kishi (Drive Knight)
- Daisuke Namikawa is Butagami (Pig God)
- Satoshi Hino is Chōgōkin Kurobikari (Superalloy Blackluster)
- Yūji Ueda is Banken-man (Watchdog Man)
- Kousuke Toriumi is Senkō no Flash (Flashy Flash)
- Katsuyuki Konishi is Tank-top Master
- Wataru Hatano is Kinzoku Bat (Metal Bat)
- Masaya Onosaka is Puri-Puri Prisoner
- Mamoru Miyano is Handsome Kamen Amai Mask
- Saori Hayami is Jigoku no Fubuki (Hellish Blizzard)
- Yūichi Nakamura is Mumen Rider
In addition, Hikaru Midorikawa will play the character Garou.
Chikara Sakurai is replacing Shingo Natsume to direct the season at J.C. Staff. Madhouse animated the first season. Chikashi Kubota is returning to design the characters, and Tomohiro Suzuki is again in charge of series composition. Makoto Miyazaki is also returning to compose the music.