Moroni

Moroni is a white Native American angel whom the founder of the Mormon religion Joseph Smith had claimed to have visited him on multiple occasions. He made his only appearance in the Season Seven episode "All About Mormons".

Background
When the new student Gary Harrison invites Stan over to his house to meet his family, they decide to tell Stan the story of Joseph Smith. At one point of the story, the angel Moroni appears at Joseph Smith's bedside, telling Smith what had happened to his people and saying that there is a book as well as two seer stones buried near Smith's home, allowing him to translate the writings. Later on, when the townspeople ask Smith where the seer stones and gold plates are, he says that Moroni appeared to him again and told him not to show either of them to anybody.

Appearance
Moroni appears as a very tall man with gray hair and gray eyebrows. He wears a long yellow robe. He has a yellow glow around him and speaks with a slight echo in his voice.