Loki Laufeyson (Marvel Cinematic Universe)

""You will never be a god.""

- - Loki before dying at the hands of Thanos.

Loki Laufeyson is the secondary antagonist of the Infinity Saga of the Marvel Cinematic Universe.

He serves as the main antagonist of both Thor and The Avengers, an unseen antagonist in Avengers: Age of Ultron, as both the tritagonist and overarching antagonist of Thor: The Datk World, the anti-heroic deuteragonist of Thor: Ragnarok, the opening character of Avengers: Infinity War, and a posthumous character/supporting antagonist in Avengers: Endgame.

He is the god of mischief and the son of the frost giant Laufey who was adopted by the Asgardian god Odin as one of his kin. Loki made attempts on taking over Asgard in the first Thor movie, then became a temporary minion to Thanos and attempted to conquer the Earth and retrieve the Tessaract (which contains the Space Stone) for Thanos.

He was played by Tom Hiddleston who also played Lord Nooth in Early Man and Captain James Hook from The Pirate Fairy.

What Made Him Redeemed?

 * Showed remorse for his actions he had done at the first Avenger's movie and Thor movie
 * His love for his family, he even went so far as to help Thor defeat his sister Hela and save the people of Asgard. Even willing to sacrifice his life in attempt to kill Thanos and save his adoptive brother Thor.

Trivia
Loki is effectively the secondary antagonist of the Infinity saga, being the next most influential villain after Thanos.