Dr. Reed Richards is a scientist and inventor better known as Mister Fantastic, who has been considered the smartest man on Earth. He is a polymath with mastery of all the sciences including electrical, mechanical, aerospace engineering, electronics, chemistry, physics, biology and beyond. He was exposed to high levels of cosmic radiation during a trip to space. The radiation mutated him allowing him to stretch his body. #ReedRichards #MisterFantastic #JohnKrasinski #FantasticFour #Marvel #MCU