Uatu (ˈwɑːtuː), often simply known as the Watcher, is a fictional character appearing in American comic books published by Marvel Comics. Created by Stan Lee and Jack Kirby, he first appeared in The Fantastic Four #13 (April 1963). He is a member of the Watchers, an extraterrestrial species who in the distant past stationed themselves across space to monitor the activities of other species. Uatu is the Watcher assigned to observe Earth and its Solar System.
The character has been adapted into other media, such as video games, toys, and television. Jeffrey Wright voices the Watcher, a character based on Uatu, in the Marvel Cinematic Universe animated series What If..? (2021–present) on Disney+.
The character first appeared without a name in Fantastic Four #13 (Apr 1963), and periodically reappeared in that title. He then starred in "Tales of the Watcher", a backup feature that ran in Tales of Suspense #49-58 (Jan 1964-Oct 1965), Silver Surfer #1-7 (Aug 1968-Aug 1969) and Marvel Super-Heroes #23 (Nov 1969). His origin was revealed in Tales of Suspense #53 (May 1964), and his name was revealed in Captain Marvel #39 (Jul 1975).
The character has made many cameo appearances across the Marvel Universe since his debut, including Avengers, Uncanny X-Men, Hulk, Silver Surfer, Quasar, and Marvel Point One. He acts as the narrator in Marvel's What If? title.
In the 2014 "Original Sin" storyline, the character is murdered, sparking a hunt for his murderer. The core miniseries of that storyline is written by Jason Aaron and illustrated by Mike Deodato.
The Watchers are among the oldest and most advanced beings in the cosmos. Eons ago, they sought to spread their knowledge to benefit the lesser races of the Universe. Their first attempt, on the planet Prosilicus, included sharing nuclear technology. When the Watchers returned to Prosilicus, they found the natives had all but destroyed themselves in a nuclear war. The Watchers blamed themselves for the catastrophe and vowed to never again meddle in the affairs of other races.