Mad Doctor Fish

Mad Doctor Fish (マッドドクターフィッシュ, Maddo Dokutā Fisshu) were Mysterious Beings and part of the Monster Association. They lived in a sort of symbiotic relationship with Evil Natural Water, but were killed via oil poisoning.^[1] As of the revision of Chapter 114 into Chapter 110, the Mad Doctor Fish are no longer explicitly identified by name or disaster level.

Appearance[]

The Mad Doctor Fish's appearances are based on red garras (also known as doctor fish), but they have larger jaws and sharper teeth that bear a resemblance to carnivorous piranhas. They also appear to possess up to six eyes, though the number varies per fish.

Plot[]

Human Monster Saga[]

Monster Association Arc[]

As a last resort, Master Joe opens the tank holding Evil Natural Water, releasing it as well as the fishes to attack Atomic Samurai's disciples and Tongara. The fish devour Master Joe, and Evil Natural Water uses them to attack the humans as it rampages down the hallway. Once Tongara is lethally wounded and forced to stay behind, his body and battle suit are torn to shreds by the Mad Doctor Fish.^[2]

More Mad Doctor Fish appear when Evil Natural Water attacks Child Emperor, again launching them at its target. They chew up some of Child Emperor's backpack's arms and weapons, but he manages to dispose of most of them.^[3] Once Child Emperor freezes Evil Natural Water, it absorbs the oil from Sludge Jellyfish's body to reduce its freezing point; this poisons and kills all the Mad Doctor Fish in the process, and their corpses are expelled.^[4]

Abilities and Powers[]

Mad Doctor Fish Chew — Mad Doctor Fish devour a monster in mere seconds.

Because their collective threat level is Tiger, it can be inferred that the Mad Doctor Fish are dangerous, but not extremely powerful. They act as an effective means for Evil Natural Water to conduct a variety of long-ranged attacks.

Physical Abilities[]

Powerful Bite: Mad Doctor Fish have a strong bite that can easily pierce the flesh of other mysterious beings. They are able to completely devour weaker and wounded opponents in seconds, and even tear apart Tongara's highly durable armor. Mad Doctor Fish could also chew through Child Emperor's metal weapons to break them.

Battles[]

Participants	Chapter(s)	Episode(s)	Result
Evil Natural Water and Mad Doctor Fish vs. Atomic Samurai's disciples and Tongara	110	None	Win
Evil Natural Water and Mad Doctor Fish vs. Child Emperor	121	None	Loss

Trivia[]

The Mad Doctor Fish are the only monsters in the series so far to live in symbiosis with another.

References[]

↑ One-Punch Man Manga; Chapter 121, page 16
↑ One-Punch Man Manga; Chapter 110
↑ One-Punch Man Manga; Chapter 121
↑ One-Punch Man Manga; Chapter 122

Navigation[]

v • eMonster Association
Leaders	Orochi ^† • Psykos/Gyoro Gyoro ^†
Executives	Black Sperm • Elder Centipede ^† • Evil Natural Water ^† • Fuhrer Ugly ^† • Gouketsu ^† • Gums ^† • Homeless Emperor ^† • Nyan ^‡ • Overgrown Rover
Dragon	Bakuzan ^† • Gale Wind ^‡ • Golden Sperm ^† • Hellfire Flame ^‡ • Phoenix Man
Demon	Awakened Cockroach ^† • Baquma ^† • Bug God ^† • Building Booper ^† • Devil Long Hair ^* • Do-S ^* • Eyesight ^† • Face Ripper ^† • Fist Fight Djinn ^† • Free Hugger ^† • G5 ^† • Hundred-Eyes Octopus ^† • Rafflesidon ^† • Rhino Wrestler ^† • Royal Ripper ^† • Senior Centipede ^† • Showerhead ^† • Super Mouse ^† • The Great Food Tub ^† • The Three Crows ^† • Unihorn ^† • Vampire (Pureblood) ^†
Tiger	Destrochloridium ^† • Electric Catfish Man • Mad Doctor Fish ^† • Maiko Plasma • Marshall Gorilla ^* • Master Joe ^† • Sludge Jellyfish ^†
Unknown	Benpatsu ^* • Choze ^† • Evil Eggs ^† • Evil Eye ^† • Gale ^≠ • Goddess Glasses ^≠ • Gyoffrey ^† • Hamukichi ^* • Haragiri ^† • Hellfire ^≠ • Junior Centipede ^† • Manako • Platinum Sperm ^† • Raptora ^† • Reptera ^* • Rosie ^† • Sword Devil Executioner ^† • The Three Tempest Brothers • Venus Mantrap ^† • Volten ^*

v • eMysterious Beings
Dragon (or higher)	Boros ^† • Orochi ^†
Dragon	Bakuzan ^† • Black Sperm • Carnage Kabuto ^† • Elder Centipede ^† • Energiser ^† • Forest King ^† • Fuhrer Ugly ^† • Gale Wind • Geryuganshoop ^† • Gouketsu ^† • Groribas ^† • Gyoro Gyoro ^† • Gums ^† • Golden Sperm ^† • Hellfire Flame • Homeless Emperor ^† • Kenzan Rat ^† • Marugori ^† • Melzargard ^† • Nyan • Overgrown Rover • Pluton ^† • Psykos • Vaccine Man ^†
Demon	170,000-Year-Old Cicada Larva ^† • 170,000-Year-Old Cicada Adult ^† • Armored Gorilla • Awakened Cockroach ^† • Baquma ^† • Beast King ^† • Bruinado ^† • Bug God ^† • Building Booper ^† • Deep Sea King ^† • Demonic Fan ^† • Devil Long Hair ^* • Do-S ^* • Eyesight ^† • Face Ripper ^† • Fist Fight Djinn ^† • Free Hugger ^† • G4 ^† • G5 ^† • Game-Berus ^† • Giant Crow ^† • Giant Snowman ^† • Grizzly Nyah ^† • Hundred-Eyes Octopus ^† • Internet Surfers ^† • Jumping Spider ^† • Lord of Mountains ^† • Macho Daikon ^† • Mosquito Girl • Rafflesidon ^† • Rhino Wrestler ^† • Royal Ripper ^† • Scaledon ^† • Senior Centipede ^† • Showerhead ^† • Sky King ^† • Subterranean King ^† • Super Mouse ^† • Surprise-Attack Plum ^† • The Great Food Tub ^† • The Three Crows ^† • Twin-Headed Tsuchinoko ^† • Unihorn ^† • Vampire (Pureblood) ^†
Tiger	Black Roast ^† • Crablante ^† • Delorean ^† • Destrochloridium ^† • Electric Catfish Man • Fighting Bull-Frog ^† • Forest Folk ^† • Frog Man ^† • Ground Dragon ^† • Kamakyuri ^† • Kombu Infinity • Mad Doctor Fish ^† • Maiko Plasma • Marshall Gorilla ^* • Master Joe ^† • Man-Eating Capybara • Octopus Claw Man ^† • Personification Of A Light Pull Cord ^† • Sludge Jellyfish ^† • Slugerous ^† • Three-Eyed Ghost ^† • Urn Eel ^† • Withered Sprout ^†
Wolf	Beer Bellee • Himawari ^† • Hotdog ^† • Messenger of the Seafolk ^† • Piggy Bancon ^† • Tongue Stretcher • Shiverhuahua ^†
Less than Wolf	Monster Chick Man
Unknown	Alien Seer ^* • Ancient King ^† • Angry Grandpa ^† • Autumn Phantom Red Golden-ringed Dragonfly ^* • Benpatsu ^* • Choze ^† • Cruel Dragon ^† • Dark • Dark Matter Gunner ^† • Dirt Earthworm ^† • Eagle ^† • Empty Void • Enamel ^† • Evil Eggs ^† • Evil Eye ^† • Evil Natural Water ^† • Falcon ^† • Fish of Darkness • Gale ^≠ • Giant Salamander ^† • Gigakigan ^† • God • Goddess Glasses ^≠ • Gyoffrey ^† • Hamukichi ^* • Haragiri ^† • Hawk ^† • Hellfire ^≠ • Junior Centipede ^† • Kite ^† • Lord Great White ^† • Manako ^* • Men's Esthetician Man ^* • Platinum Sperm ^† • Rosie ^† • Raptora ^† • Reptera ^* • Rangor ^† • Research Hybrid Monster ^† • Sage Centipede ^† • Sea Slug • Snake-type monster ^† • Super Custom YO649Z Mk. II ^† • Suppon ^† • Sword Devil Executioner ^† • The Mad Cyborg • The Three Tempest Brothers • TV Junkyard Monster ^† • Venus Mantrap ^† • Volten ^*

[1] One-Punch Man Manga; Chapter 121, page 16

[2] One-Punch Man Manga; Chapter 110

[3] One-Punch Man Manga; Chapter 121

[4] One-Punch Man Manga; Chapter 122

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