6. One Punch Man is one of the highest rated anime on IMDB site with the rating of 9.1/10.
7. Saitama’s suit was designed based on Anpanman. Anpanman and Saitama’s costume are just reverse of the colors.
8. One punch is one of few top Anime series that has made “must watch” list in most of the known streaming websites.
9. Yuuki Kaji played both roles as The Speed of Sound Sonic and Eren Yeager (Attack on Titan)
10. The reason behind the creator of one punch man to make Saitama a bald superhero cause he saw the world full of cool looking superheroes. Also, he believes their spirit makes them cool, not their look.
This are some interesting facts that you might not have noticed. For more facts like this about your favorite character visit Anime Facts