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As long as I can protect my own town, that's enough for me.
— Watchdog Man[1]

Watchdog Man (ばんけんマン Banken-man) is the S-Class Rank 10 professional hero of the Hero Association. He is in charge of Q-City.


Watchdog Man is a young-looking man with a blank and uninterested look on his face. He dresses in a full-body dog suit with a red collar, with his face showing where the dog's mouth should be.


Watchdog Man's emotionless face

Watchdog Man's stoic and emotionless disposition

Watchdog Man has been shown to be very blunt and nonchalant, and he always displays a stoic and unbothered expression on his face. He also has a habit of wearing his costume all the time, even keeping it on when he bathes.[1] His table manners are also bad since he eats like a dog and is never seen using a fork or spoon. He acts like a dog at all times, speaking sparingly, sitting on his haunches while alert or loitering, and curling up in a dog bed while asleep. He takes a stance on all fours while fighting, rather than standing upright to confront enemies.

Like a loyal and well-trained dog, he is solely interested in protecting his territory. Though he solely performs his hero duties there in Q-City, he relentlessly hunts down and dispatches any mysterious beings there, ripping them apart as quickly and savagely as he's able. He often piles up and perches atop the corpses of the mysterious beings that he kills.

Though willing to brutalize human attackers, he notably holds back and does not go for the kill, instead beating Garou down until he escaped Q-City's limits. He can be rather impish when fighting human criminals, as seen when he counters Garou by "shaking" his attacking hands.

His expression is constantly deadpan, making him difficult to read. Similar to Saitama, he's also very prone to boredom, as seen when he's unimpressed with Bang's Water Stream Rock Smashing Fist during a sparring match between Bang and Metal Bat at Bang's dojo, and decides to go back to Q-City to fight monsters.[5]

Abilities and Powers[]

As an S-Class hero, Watchdog Man is very powerful. A testament to his prowess is that he was left in charge of Q-City, which is considered to be the most dangerous city in terms of number and average disaster level of Mysterious Beings.[6] He is also described to eliminate monsters like no other.[7] In his early days as a hero, he managed to rip off the head of an enormous monster without incurring an injury.[8] Watchdog Man is also strong enough to defeat Garou effortlessly without using his full strength.[9] He has never lost a fight against monsters before, and is respected and feared by heroes and villains alike.

Physical Abilities[]

Watchdog Man defeats a monster as a C Class hero

Watchdog Man rips off the head of a Demon-level monster

Immense Strength: Watchdog Man possesses an extreme amount of raw physical strength, being able to easily rip apart multiple monsters far larger than himself with his bare paws.[10] He was also strong enough to severely wound Garou while holding back.[11]

WDM makes a fool of garou

Watchdog Man outmaneuvering Garou

Immense Speed and Reflexes: Watchdog Man is extremely fast, being able to rip apart multiple monsters within a few seconds.[12][13] Despite being surrounded by 30 monsters from the Monster Association at the same time, Watchdog Man managed to quickly defeat all of them and come out of the battle without a scratch, surprising Garou, who was watching the fight.[14] Furthermore, he was capable of easily keeping up with and blocking all attacks from Garou during their fight and retaliated at the speed that the Hero Hunter was unable to counter. Garou himself even commented that Watchdog Man's speed far exceeded his expectations.[15]

Immense Agility: Having excellent physical prowess, Watchdog Man is incredibly athletic and moves in a way that resembles that of a savage animal during combat. He is able to climb from one place to another, which makes it hard to follow his movements. Furthermore, his amazing speed and reflexes also grant him the balance to match his unpredictable attacks.[16][17]

Dog Attributes: Watchdog Man possesses characteristics usually associated with dogs. He has an absolute sense of smell and hearing. His senses allow him to instantly detect any monster who enters his domain.[3] He noticed someone farted during a meeting when none of the other S-Class heroes noticed.[18]

Fighting Style[]

Watchdog Man parries Garou Water Stream Rock Smashing Fist

Watchdog Man parries Garou's attacks

Hand-to-Hand Combatant: Watchdog Man's fighting style was described by Garou as that of a beast or a monster rather than a human. It has also been noted by Garou that Watchdog Man lacks any special techniques or weapons, relying only on simple hand-to-hand combat, much like Saitama.[19] He was able to counter Garou's martial arts techniques due to Garou's techniques having been designed to be used against human targets, not animals, as well as the fact that Bang did not teach him how to fight non-humanoid opponents. When Watchdog Man countered Garou's attacks, his blocking resembled the dog-like behavior of giving his paw for a handshake.[20]

Hero Rating[]

Watchdog Man's rating determined by the Hero Association[3]:

Ability Type Stamina Intelligence Justice Endurance Power Popularity Effectiveness Fighting Ability Total
Physical ? ? ? ? ? 8 7 ? ?


  • (To Sitch) "I get it. But all we know is that something is coming within the next half year. There isn't much we can do to prevent it."[21]
  • (To Garou) "Are you a human or a monster?"[22]


Watchdog Man Hachiko statue comparison

Watchdog Man on his pedestal in Q-City (left) and the statue of Hachikō in Tokyo (right)

  • Watchdog Man is ranked 18th in the character popularity poll.
  • Watchdog Man appeared in Dr. Genus' computer screen in the House of Evolution.[23]
  • The origin of Watchdog Man's hero name comes from Watchdog Man wearing a dog costume and his physical abilities and fighting style of a wild dog.[3]
  • His activities are strictly limited to Q-City and there seems to be hidden reasons behind it.[3]
  • Watchdog Man and the pedestal he sits on are likely references to Hachikō, a Japanese Akita dog remembered for his incredible loyalty, and the famous statue of him in Shibuya, Tokyo.
  • Watchdog Man’s monument is near a train station and citizens come to clean the blood of monsters off of the plaza and statue every day.[24] The location of the monument is another reference to Hachikō, as the famous dog would wait for his deceased owner at a train station.
  • Watchdog Man referenced the Greek mythological dog Cerberus twice:
    • The first time was in the 2017 One Punch Man Halloween cover, where he was depicted with three heads.[25]
    • The second time was in a simple sketch of the homonymous dog Cerberus from Eyeshield 21, Murata's most famous work aside from One Punch Man. In the sketch, Murata depicted Cerberus with two extra heads, one of Watchdog Man and the other of Overgrown Rover.


  1. 1.0 1.1 One-Punch Man OVA; The Murder Case that Is Too Impossible
  2. One-Punch Man Manga; Chapter 67, page 25
  3. 3.0 3.1 3.2 3.3 3.4 3.5 3.6 One-Punch Man Encyclopedia; One-Punch Man: Hero Encyclopedia, page 78
  4. One-Punch Man Manga; Chapter 122 (Online), page 17-18
  5. One-Punch Man Audio Book; Charanko, Learning
  6. One-Punch Man Manga and Anime; Chapter 20, page 7, and Episode 6
  7. One-Punch Man Manga; Chapter 20, page 7
  8. One-Punch Man Manga; Chapter 122 (Online), page 17
  9. One-Punch Man Manga; Chapter 77, page 19
  10. One-Punch Man Manga; Chapter 67, page 27-28
  11. One-Punch Man Manga; Chapter 77, page 17-20
  12. One-Punch Man Manga; Chapter 67, page 27
  13. One-Punch Man Audio Book; Charanko, Learning
  14. One-Punch Man Manga; Chapter 67, page 25-28
  15. One-Punch Man Manga; Chapter 77, page 17-20
  16. One-Punch Man Manga; Chapter 67, page 27-28
  17. One-Punch Man Manga; Chapter 77, page 21
  18. One-Punch Man Manga; Chapter 30, page 17
  19. One-Punch Man Manga; Chapter 67, page 28
  20. One-Punch Man Manga; Chapter 77, page 20
  21. One-Punch Man Manga; Chapter 31, page 19
  22. One-Punch Man Anime; Episode 20
  23. One-Punch Man Anime; Episode 2
  24. One-Punch Man Audio Book; Charanko, Learning


Hero Association
S-Class 1. Blast • 2. Tornado of Terror/Tatsumaki • 4. Atomic Samurai/Kamikaze • 5. Child Emperor • 6. Metal Knight/Bofoi • 7. King • 8. Zombieman • 9. Drive Knight • 10. Pig God • 11. Superalloy Darkshine • 12. Watchdog Man • 13. Flashy Flash • 14. Demon Cyborg/Genos • 15. Metal Bat/Bad • 16. Tanktop Master (Tank Topper Army) • 17. Puri-Puri Prisoner
B-Class 1. Blizzard of Hell/Fubuki (The Blizzard Group) • 2. Eyelashes • 3. Mountain Ape • 4. Mad Devil Yankee • 6. Wild Horn • 20. Glasses • 25. Pink Hornet • 29. Double Hole • 39. Smell Master • 39. Reclusamurai • 43. Gun Gun • 49. Butcher • 50. Jet Nice Guy • 60. Needle Star • 65. Piko • 69. Crying Man • 70. Trap Tengu • 71. Captain Mizuki/Mizuki • 74. Lily of the Three Section Staff/Lily • 77. Bone • 81. Tanktop Black Hole • 93. Mushroom • 99. ShooterDarkness BladePineapple
Undetermined Class GunmaTanktop GirlTanktop RockabillyTanktop RacerTanktop Al DenteTanktop SwimmerTanktop JungleTanktop MaskTanktop HatterTanktop DoctorPandaman
Staff Members AgoniBushoC Branch OperatorCautousConsole OperatorExmaGishGobrichJinzurenMain Branch OperatorMcCoyNarinkiSekingarShelter Nr. 7 GirlShizukaSitchSome Important GuySpecial Committee GirlTorgevaZ Branch Committee GirlZ Branch OperatorZeimeet