Ben Grimm

Once back on Earth, the four passengers discovered that the cosmic radiation had triggered mutagenic changes in their bodies. Grimm was transformed into an orange-colored, thick-skinned, heavily muscled, and superhumanly strong "thing." Richards convinced the three others that the four of them should use their new powers for the good of humanity as members of a team named the Fantastic Four. Richards called himself Mister Fantastic, Susan and Johnny Storm took the names of the Invisible Girl (later Invisible Woman) and the Human Torch, and Grimm, morose over his new grotesque appearance, named himself the Thing. Under Richards' leadership, the Fantastic Four has become Earth's most honored team of superhuman adventurers and has saved the world from conquest or destruction many times. Their incorporation heralded the modern age of superheroes.