Originally named Lunar Nicholai, Moon Face is a homunculus with a moon-shaped head and a higher-up of L.X.E. He is depicted as constantly cheerful, rarely seen without smiling, and he uses the catch phrase "Moon~" whenever possible. After L.X.E. is defeated, Moon Face is put into custody by the Alchemy Warriors, and later sent to the Moon with Victor and the other homunculi. Moon Face joined the L.X.E. a hundred years before the start of the series, when he came from Russia to Japan for reasons unknown.

Moon Face uses Kakugane XXX, which manifests as the Buso Renkin Satellite 30 (サテライト・30, Sateraito 30). This allows him to create up to 30 copies of himself, each copy having a different head representing the different phases of the moon. Since this uses a large amount of energy, only a homunculus such as Moon Face can use it. The more copies Moon Face makes, the harder it is for him to coordinate complicated moves. Unless all 30 are defeated at once, more copies can always be made, as each one is the real version. Watsuki stated that he got the idea of Satellite 30 from the character Agent Smith from The Matrix Reloaded.[citation needed] Voiced by: Tomokazu Seki (Japanese), Christopher Corey Smith (English)

Source: Wikipedia