Heimdall
Heimdall is one of the Norse gods, best known as the watchman figure who observes and narrates the events of Ragnarok—basically the Norse apocalypse. He's got this role where he doesn't just witness what's happening, but actively comments on the battles and chaos unfolding around him. Fans of Norse mythology often note his unique position as an almost neutral observer who gets to weigh in on the end of everything.
Content compiled by AnimeList.moe from publicly available sources.