Series synopsis
One-Punch Man, also known as ワンパンマン is a Japanese animation comedy action & adventure sci-fi & fantasy television series that premiered on TV Tokyo on October 5, 2015. It stars Makoto Furukawa, Kaito Ishikawa, Hiroki Yasumoto and Kazuhiro Yamaji.
Saitama is a hero who only became a hero for fun. After three years of “special” training, though, he’s become so strong that he’s practically invincible. In fact, he’s too strong—even his mightiest opponents are taken out with a single punch, and it turns out that being devastatingly powerful is actually kind of a bore. With his passion for being a hero lost along with his hair, yet still faced with new enemies every day, how much longer can he keep it going?
Premise
Saitama is a hero who only became a hero for fun. After three years of “special” training, though, he’s become so strong that he’s practically invincible. In fact, he’s too strong—even his mightiest opponents are taken out with a single punch, and it turns out that being devastatingly powerful is actually kind of a bore. With his passion for being a hero lost along with his hair, yet still faced with new enemies every day, how much longer can he keep it going?
Premise: All it takes is one punch.
Cast and characters
Leading cast
- Makoto Furukawa as Saitama (voice)
- Kaito Ishikawa as Genos (voice)
- Hiroki Yasumoto as King (voice)
- Kazuhiro Yamaji as Silverfang (voice)
- Yuichi Nakamura as License-less Rider (voice)
- Minami Takayama as Child Emperor (voice)
- Kenjiro Tsuda as Atomic Samurai (voice)
- Aoi Yuuki as Terrible Tornado (voice)
Supporting cast
- Takahiro Sakurai as Zombieman (voice)
- Saori Hayami as Hellish Blizzard (voice)
- Hikaru Midorikawa as Garou (voice)
- Satoshi Hino as Superalloy Blackluster (voice)
- Yuji Ueda as Watchdog Man (voice)
- Kohsuke Toriumi as Flashy Flash (voice)
- Katsuyuki Konishi as Tank-Top Master (voice)
- Wataru Hatano as Metal Bat (voice)
- Masaya Onosaka as Pri-Pri-Prisoner (voice)
- Mamoru Miyano as Handsome Sweet Mask (voice)
- Yuki Kaji as Speed of Sound Sonic (voice)
- Tessyo Genda as Metal Knight (voice)
Guest cast
- Yoji Ueda as Drive Knight (voice)
- Daisuke Namikawa as Pig God (voice)
- Yukitoshi Tokumoto as Crablante (voice)
- Takuma Suzuki as Fukegao (voice)
- Ami Naito as Split-chinned Kid (voice)
- Shinya Hamazoe as Ground Dragon (voice)
- Kaede Yuasa as Girl (voice)
- Shota Yamamoto as Armored Gorilla (voice)
- Hiroki Goto as Kafetch (voice)
- Miyuki Sawashiro as Mosquito Girl (voice)
- Yoshiaki Hasegawa as Hero Association Staff (voice)
- Jiro Saito as Beast King (voice)
Episodes
This series spans 4 seasons with 51 episodes.
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 0 | 15 | December 4, 2015 | October 5, 2025 |
| Season 1 | 12 | October 5, 2015 | December 21, 2015 |
| Season 2 | 12 | April 10, 2019 | July 3, 2019 |
| Season 3 | 12 | October 12, 2025 | December 28, 2025 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
Road to Hero A story about Saitama from when he still had hair and his only costume was a track suit. Several shops in Saitama’s neighbourhood have gone out of business and the owner of the last one left needs his help. |
December 4, 2015 |
| 2 |
The Shadow That Snuck Up Too Close A story set sometime between Mosquito Girl’s defeat and Genos showing up to Saitama’s apartment. Genos wants to learn the secret to Saitama’s power and decides to follow him and to observe everything he does. At the same time, Saitama is convinced that someone is stalking him. |
December 24, 2015 |
| 3 |
The Student Who Sucks at Storytelling Jenosu it accidentally trapped in Don Pacino a little bit caught in the Mafia of conflict. Jenosu that are in a hurry the shopping asked the bargain in Saitama’s to explain to Don Pacino, but… |
January 29, 2016 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
The Strongest Man Saitama is a guy who’s a hero for fun. After saving a child from certain death, he decided to become a hero and trained hard for three years. Though he’s now so strong he can defeat any opponent with a single punch, lately he feels as if, in exchange for overwhelming power, he’s lost something even more important. |
October 5, 2015 |
| 2 |
The Lone Cyborg A monster is moving toward City Z, one that has been created by the mysterious organization known as The House of Evolution. Genos, a young cyborg, attempts to stop it, but gets in over his head before Saitama happens along. |
October 12, 2015 |
| 3 |
The Obsessive Scientist Saitama and Genos glean information about The House of Evolution and its founder Dr. Genus, a scientist with dangerous ideas on artificial human evolution. Meanwhile, Dr. Genus learns of Saitama’s amazing strength and has plans of his own for One-Punch Man. |
October 19, 2015 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
Return of the Hero Saitama is out shopping with Genos in tow when the pair come across G4, a demonic robot on a mission to eliminate King. Elsewhere, Sitch attempts to recruit various cutthroats, villains and assassins of the underworld to help the Hero Association. |
April 10, 2019 |
| 2 |
Human Monster Garou issues a declaration of war on the Hero Association through terrifying means, Hellish Blizzard gives Saitama an ultimatum, and Genos decides to eliminate his master's stalker, Speed-o'-Sound Sonic. |
April 17, 2019 |
| 3 |
The Hunt Begins Garou, out hunting heroes, can barely contain his excitement when he gets the chance to battle the S Class hero Tank-top Master. Meanwhile, Silverfang shutters his dojo to begin his own hunt of his former disciple. |
April 24, 2019 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
Strategy Meeting The heroes plan a rescue of a child kidnapped by monsters, while Garou awakens deep underground. |
October 12, 2025 |
| 2 |
Monster Traits On his way to hunt heroes, Garou dines and dashes at a restaurant, but is chased by Saitama. |
October 19, 2025 |
| 3 |
Organism Limits Garou fights Insect God and King the Ripper, while Tareo gets kidnapped. Dr. Kuseno visits Saitama. |
October 26, 2025 |
Production
Release
| Original network/platform | TV Tokyo |
|---|---|
| First aired | October 5, 2015 |
| Last aired | December 28, 2025 |
| Runtime | 24 minutes |
| Status | Returning Series |
| Schedule | Sunday at 23:45:00 |