Saitama, an unassociated and independently acting superhero who dreams of becoming famous, hails from Z-City and performs heroic deeds as a hobby.

In the anime adaptation, Saitama is voiced by Makoto Furukawa in Japanese and Max Mittelman in the English dub.

But inside One-Punch Man's universe, I made Saitama a sort of guy who was capable of adapting his life to the world that surrounded him, only armed with his immense power.

[8] Furukawa called him "complex" due to his lack of motivation and not being attentive enough while his chores are part of what make him charm which made him relatable.

[10] Mittelman was attracted by the series' first episode and found hilarious how Saitama dresses in contrast to the menacing villains.

He expressed difficulties in emulating Furukawa, claiming his performance would come as "crazy" due to the differences between the Japanese and the English versions.

Three years prior to the start of the series, when he still had hair, Saitama was job hunting when he defeated the powerful supervillain Crablante[broken anchor] that attempted to kill a child with a butt-chin.Ch.

He attributes this to a daily training regimen (100 push-ups, 100 sit-ups, 100 squats, a 10 km run, eating healthy food, and abstaining from use of the air conditioner or heater in order to reinforce his mental fortitude.)

These include defeating the raging ninja supervillain/assassin known as Speed-o'-Sound Sonic (who became his unlikely rival) and destroying a meteor similar to Chicxulub, each with a single punch.

Regardless of his rank, he does not mind giving others the credit, as demonstrated in his actions following the fight against the Deep Sea King[broken anchor].

In the Dark Matter Thieves[broken anchor]' story arc, he is unfazed by the telekinesis of a powerful esper, further displaying his resistance.

[16][17] In 2019, a Singaporean man named known as Seah replicated Saitama's workout he mentions early in the series to become fit, showing positive results in the process.

However, the first season's ending was praised for mixing both elements of the narrative into two episodes where Saitama makes a dull expression before becoming serious in a fight for the first time.

[20] IGN agreed stating the series does a fine job at how Saitama properly ends most of his fights in a different fashion.

[21] Comic Book Resources praised chapter 165 as it portrayed Saitama at his biggest which several readers have always been looking forward to though there is no sense of happiness to his feats.

[26] SportsKeeda noted several fandoms tend to be split on who is the strongest character in two series: Saitama or Goku from Dragon Ball.

[27] Anime News Network compared Saitama with All Might, a famous character from the manga series, My Hero Academia among Western superheroes, stating that despite their similar concepts, the narrative is far different.