Gandalf is one of the primary protagonists of the famous novella, The Lord of the Rings. A powerful and wise sorcerer with extreme knowlenge of the magic arts, Gandalf is the official leader of the Fellowship of the Ring, a group in which they seek and destroy the One-Ring, the only living remnant of the Dark Lord Sauron, for the purpose to prohibit Sauron's uprising from the universe and stop the armies of Sauron, and the armies of his servant, Saruman, at all cost. However, Gandalf detects another source of evil, other than the Dark Lord's himself, in the events of Heroes vs. Villains War, thus he takes Frodo Baggins, Samwise Gamgee and Aragorn on a quest to stop the said source of evil from spreading throughout the universe.
Heroes Vs Villains War
Non-Disney Heroes Vs Villains War
Originally called Olórin, he was accounted as the wisest of the Maiar (Celestial Being). He was created by God he's also known as Eru Illuvitar.