The The Watcher Legacy

Uatu is a member of the Watchers, an ancient and immensely powerful alien race that long ago took a vow of non-interference in the affairs of other civilizations — a vow Uatu finds endlessly tested by his fascination with humanity, particularly the Fantastic Four, whom he first observed from his home on Earth's Moon.

Uatu is a member of the Watchers, an ancient alien race sworn to observe but never interfere with the universe's civilizations. Stationed on the Moon, he monitors Earth and its heroes — though he has occasionally broken his sacred oath when humanity's fate hangs in the balance.