Saitama

Saitama is the protagonist of One Punch Man, the manga series created by ONE that began as a webcomic in 2009 before being adapted into a manga illustrated by Yusuke Murata in 2012 and an anime series produced by Madhouse in 2015. A bald, unassuming man from Z-City who became a hero purely as a hobby, Saitama possesses the ability to defeat any opponent with a single punch — a power so absolute that it has rendered combat meaningless to him. His defining characteristic is not his strength but his boredom: the series frames his invincibility not as a fantasy but as an existential problem, and that inversion is what separates One Punch Man from the genre it parodies. Where most shonen protagonists are defined by their struggle to grow stronger, Saitama's arc runs in the opposite direction — he has already arrived, and the joke is that nobody knows it. That premise has made him one of the most meme-able characters in anime, with his deadpan expression and anticlimactic finishes generating a constant stream of fan edits, reaction content, and cultural shorthand for effortless dominance. One Punch Man Season 3, produced by J.C. Staff, premiered in 2025 and renewed mainstream attention around the character, cementing Saitama's place as one of the defining figures of modern anime.