Marvel superheroes have been gracing comic book pages ever since the 1930s, with the debut of the Human Torch, the Angel, the Masked Raider, and Ka-Zar in Timely Comics' Marvel Comics #1. This issue also featured the introduction of Namor the Sub-Mariner, the first supervillain to combat the heroes that would ironically join their fight against evil in World War II. However, peace rarely lasts with this character as he frequently attacks human armies and heroes for fear of them taking over his undersea homeland. These conflicting behaviors lead many fans to consider him more of an anti-hero than a Marvel supervillain.
Source：https://www.cbr.com/namor-vs-mole-man-marvel-comics-first-supervillain/
