Loki Laufeyson

"Loki, I thought the world of you. I thought we were gonna fight side by side forever, but at the end of the day, you're you and I'm me, and... I don't know, maybe there's still good in you, but let's be honest – our paths diverged a long time ago."

- Thor to Loki Loki Laufeyson ( also known as  Prince Loki of Asgard,  Loki Odinson, and Loki of Jotunheim) is the (possible) secondary antagonist of Avengers: Infinity War. Loki is a born-Jotun found and adopted by Odin of Asgard and his wife, Frigga. However, he grew up with his brother, Thor. In 2017, Loki learned he had an older sister named Hela and stood by Thor's side to defeat their evil sister, but losing their homeworld, Asgard, in the process.

History
Loki was born on the planet, Jotunheim but left to die in a temple. Odin found Loki as a child and used Asgardian Magic to alter Loki's appearance to that of an Asgardian. He grew up believing that he was Odin and Frigga's biological son and that Thor was his real brother.