Reed Richards
aka Mr. Fantastic
Spoiler:
Mr. Fantastic is a fictional character, a superhero who appears in comic books published by Marvel Comics. He is a founding member of the Fantastic Four. Created by writer Stan Lee and artist/co-plotter Jack Kirby, the character first appeared in Fantastic Four #1 (November 1961).
Reed Richards possesses a mastery of mechanical, aerospace and electrical engineering, chemistry, all levels of physics, and human and alien biology. BusinessWeek listed Mr. Fantastic as one of the top ten most intelligent fictional characters in American comics. He is the inventor of the spacecraft which was bombarded by cosmic radiation on its maiden voyage, granting the Fantastic Four their powers. Richards gained the ability to stretch his body into any shape he desires.
Richards acts as the leader and father figure of the Fantastic Four, although in recent years he has increasingly been portrayed as being cold and distant towards his teammates due to his scientific, methodical nature. This is particularly true with his best friend, the Thing, who partially blames Richards for his transformation into a large, rocky creature.