Johnny Storm the Human Torch from Marvel Comics.

Jonathan "Johnny" Storm a.k.a. the Human Torch is an American superpowered adventurer. He was a high school student before he was exposed to high levels of cosmic radiation when his older sister Sue Storm's boyfriend, scientist Dr. Reed Richards, took them and pilot Ben Grimm into space in the stolen rocket Marvel-1. The radiation mutated the group, transforming Johnny's entire body into a fiery, plasma-like state. Together, they became the Fantastic Four, a team of adventurers who explored space, time, and alternate dimensions and saved the world along the way from science-based threats.