Ultimus (comics)
Uatu is a Watcher in the Marvel Comics universe. Created by Stan Lee and Jack Kirby, the character first appeared in Fantastic Four #13 (April 1963). Within the context of the stories, Uatu is the Watcher tasked with watching over the Earth and its solar system.
Read more about Ultimus (comics): Ugly John, U-Go Girl, Ulik, Ultimaton, Ultimo, Ultimus, Ultra Girl, Ultron, Ulysses, Unnthinnk, Unseen, Unus The Untouchable, Unuscione, Uproar, Uranos, Ben Urich, Phil Urich, Ursa Major, Urthona, U.S. Agent, Utgard-Loki