Worlds of Wonder: Who is Uatu?

yes, Uatu is powerful enough to even fight Galactus!

The Watcher assigned to watch over Earth.

Uatu made his first appearance in Fantastic Four #13 back in 1963 (created by Stan Lee and Jack Kirby, naturally). He’s part of an alien race known as the Watchers, who, after a disastrous attempt at helping a planet called Prosilicus that ended in a genocidal war, vowed to never again to interfere in the affairs of other races.