Loki

Loki Odinson is the son of Laufey, the ruler of the Frost Giants of Jotunheim, but, shortly after his birth, he was abandoned and left to die. Found by the Asgardian king Odin, Loki was adopted by Odin and his wife Frigga as an Asgardian prince, along with their biological son Thor. When he grew up, he became known as the "god of mischief".

When Loki learned the truth about his father, he made a plan to force Odin to banish Thor so he could become next in line to the throne. The first part of his plan worked well, but Thor returned from his exile on Earth and ended Loki's reign of terror. Lost in the universe, Loki made a deal with Thanos, who gave him command over their army of the Chitaurito conquer Earth.

Once he came to Earth, Loki managed to take possession of the Tesseract, but he was ultimately defeated by a group of superheroes called The Avengers. Thor returned him to Asgard, where Odin condemned him to spend the rest of his life in prison.

However, Loki was later freed by his brother in order to defeat the Dark Elves and their leader, Malekith. During the fight against the Dark Elves in Svartalfheim, Loki faked his death, and, unbeknownst to everyone, removed Odin from the throne of Asgard and took his place.