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This Article Contains Spoilers - WARNING: This article contains major spoilers. If you do not wish to know vital information on plot / character elements in a story, you may not wish to read beyond this warning: We hold no responsibility for any negative effects these facts may have on your enjoyment of said media should you continue. That is all.

Hero Overview

Yeah, he's gone... you ain't wrong. Heroes are busy folks. Too busy to bother swooping into back alleys. So two-bit wannabe villain trash like you punks... ...think you can run the joint. But nope, it ain't gonna play out like that. Why, you ask? Cuz I'm here!
~ Knuckleduster's final line in the series as he prepares to beat up villains.

Iwao Oguro, also known as Knuckleduster and formerly professionally known as the High-Speed Hero: O'Clock or simply O'Clock, is the tritagonist of the manga series My Hero Academia: Vigilantes and its anime adaptation, a spinoff of My Hero Academia. He is voiced by Yasuhiro Mamiya in the Japanese version and by Jason Marnocha in the English adaption.

Oguro was originally a professional hero operating primarily in Japan under the alias O'Clock. His quirk, aptly named Overclock, allowed him to increase the speed of his own perception to the point that the world around him appeared slow. Outwardly, O'Clock's quirk appeared as though it simply accelerated his movements, however it was his increased perception that allowed him to move at impossible speeds. Ultimately however, Iwao's quirk was stolen from him by the legendary villain All For One, leaving him quirkless.

After the loss of his quirk, Oguro abandoned his hero identity to work as a vigilante outside of the law. Although he had no powers, he honed his body and combative abilities to a lethal level that allowed him to go toe-to-toe with professional heroes and villains alike. With a pair of brass knuckles on his hands, Oguro descended to the streets and brought down criminals with shocking brutality. His main goal as the vigilante known as Knuckleduster was to defeat the Villain Factory, a secretive organization turning regular people into monsters using drugs.

Quick Answers

What is the quirk of Knuckleduster in My Hero Academia: Vigilantes? toggle section
Iwao Oguro, known as Knuckleduster and formerly the High-Speed Hero: O'Clock, initially had a quirk called Overclock, enhancing his perception speed. After losing his quirk to All For One, he became a quirkless vigilante, relying on his martial arts skills and tactical intellect, akin to DC Comics' Batman. Despite being powerless, his lethal combat abilities allow him to fight professional heroes and villains.
Provided by: Fandom
Who provides the voice for Knuckleduster in the English adaptation of My Hero Academia: Vigilantes? toggle section
Travis Willingham is the voice actor for the character Knuckleduster in the English dubbed version of My Hero Academia: Vigilantes.
Provided by: Fandom
What was Knuckleduster's original professional hero name in My Hero Academia: Vigilantes? toggle section
In My Hero Academia: Vigilantes, the character Knuckleduster, also known as Iwao Oguro, initially operated as a professional hero under the alias High-Speed Hero: O'Clock. Following the loss of his quirk, he transitioned into a vigilante, adopting the name Knuckleduster.
Provided by: Fandom
In which country did Knuckleduster primarily operate as a professional hero? toggle section
Iwao Oguro, known as Knuckleduster, was active as a professional hero and subsequently as an illegal vigilante in the unspecified nation of the 'My Hero Academia: Vigilantes' series. Despite losing his quirk, he developed his physical prowess and fighting skills to confront professional heroes and villains, gaining notoriety for his brutal approach to crime-fighting.
Provided by: Fandom
What is the real name of the character known as Knuckleduster in My Hero Academia: Vigilantes? toggle section
In My Hero Academia: Vigilantes, the character Knuckleduster's real name is Iwao Oguro. He was formerly a professional hero, and has used several aliases including O'Clock and Janitor of the Fist. He later became an illegal vigilante, leading the Naruhata Vigilantes.
Provided by: Fandom

Appearance

Iwao Oguro was a towering man with bulging muscles who stood at six feet and one inch tall. He had black eyes and short black hair cut into a crew cut. He usually had heavy stubble covering his face, although when he left it unkempt it would grow into a thick messy beard of black hair. Perhaps Iwao's most noticeable feature was a prominent scar caused by All For One that ran diagonally down his left cheek.

As the vigilante Knuckleduster, Oguro wore a poorly-cobbled together outfit. His ensemble consisted of a tight-fitting black t-shirt, a long green trench coat, beige cargo trousers, black heavy-duty boots, a pair of black fingerless gloves, and a black mask over the top of his head that kept the top of his head and eyeline obscured. In combat, Iwao wore a pair of brass knuckles over his gloves which he derived the name "Knuckleduster" from.

Trivia

Knuckleduster is often compared to , a DC Comics character.

Knuckleduster is often compared to Batman, a DC Comics character.

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