Loki (Marvel Cinematic Universe)

Loki Laufeyson is a major antagonist turned protagonist in the Marvel Cinematic Universe, appearing as the hidden main antagonist of Thor and The Avengers, the tritagonist of Thor: The Dark World, the deuteragonist of Thor: Ragnarok, and the protagonist of Loki, an upcoming television series. 
He is the adoptive brother of Thor, son of Laufey, adoptive son of Frigga and Odin, and the Prince of Asgard.
==Background==
Born Loki Laufeyson, he was abandoned as a baby on in a Jotunheim temple by his father for being small. His mother’s identity is unknown. He was picked up by Odin, who had just defeated Loki's biological father. Odin took the baby in and named him Loki. There, in Asgard, Loki was raised alongside Odin's biological son, Thor. Though the two often played and fought together, Loki often felt overshadowed by Thor, since the eldest was favored by Odin. Instead, Loki was close with his mother who taught him magic.
Learning all these skills, Loki had one time disguised himself as a snake and stabbed his brother. Loki, at one point, also turned his brother into a frog. Thor also came up with a method called, "Get Help." Loki found it humiliating, as he was the one Thor threw into the air. He later said that it was the worst thing ever and wished to never do it again.
===Physical appearance===
Loki is a slender Asgardian with white, pale skin with black hair and green eyes. His hair is mid-lengthed throughout most of Thor. However, it grew longer throughout his entire appearances.
===Personality===
Loki is initially portrayed as power-hungry and uncaring and villainous. However, he is notably less boisterous as Thor is, being more quiet than his brother. This was evident when he did not rage like Thor did when their father was investigating how the Frost Giants entered Asgard. He felt jealous and overshadowed of Thor, whom their father showed more favoritism towards.
Earlier in the franchise, Loki usually had no care for humanity, seeing it as a weakness and even bullying Thor about it.  Due to being manipulated by the Mind Stone, Loki was influenced by its terrifying power. At that point, the only human being Loki feared was Bruce Banner when he was the Hulk, often traumatized from the event when the Hulk smashed Loki on the floor and called him a "puny god" back at the Battle of New York. 
Despite his deceitful nature, Loki did care a great deal about his adoptive family especially towards his mother, Frigga, whom he was close too. She taught him magic while Thor was taught to be a warrior by their father. Also, instead of killing Odin, he merely wiped his memory of being the King of Asgard and left him at a retirement home. He and Thor eventually fully reconciled after a thousand year grudge in Thor Ragnarok. He later died trying to save him and selflessly would have given up the Tesseract to Thanos in exchange for Thor's life.
==Marvel Cinematic Universe==
===Thor===
===The Avengers===
===Thor: The Dark World===
===Thor: Ragnarok===
After ruling Asgard two years, Loki was forced by Thor to reveal himself to the entire Asgardians, much to her shock.
===Avengers: Infinity War===
Thanos kills at least half of the Asgardians on the ship, with Loki, Thor and Hulk being the only survivors of those who were not killed. Thanos has Loki cornered by the Black Order, knowing he has the Tesseract that contains the Space Stone. Thanos threatens to kill Thor if Loki does not hand it over.At first, Loki tells Thanos to kill away. However, the god of mischief finally gives in when he is forced to watch his brother being tortured. Loki conjures the Tesseract up and holds it up to Thanos. Thor insults his brother, because before, he thought that the Tesseract had been destroyed on Asgard. However, Loki tells his brother that the sun will shine on them again. Thanos mocks Loki's optimism; however, the god of mischief was distracting Thanos before allowing the Hulk to attack as Loki quickly tackles Thor down. However, Thanos is able to subdue the Hulk. As Loki is professing his "allegience" to Thanos, he conjurs a dagger behind his back and attemtps to kill Thanos. However, the Mad-Titan senses what Loki is doing and chokes Loki before killing him. Thor is left to go to his brother's body as Thanos and his children leave for Earth
===Avengers: Endgame===
Rocket Raccoon and Thor Odinson from the past passed 2013 Loki undetected.  There, he is bored in his cell and throwing a ball around. Meanwhile, the 2012 version of Loki's history remains escapedthe same until the aftermath of the Battle of  New York. He while using the Tesseract and also avoided capture by creating another portal.
==Trivia==
===Differences from the comics===
*Loki has two biological brothers: Helblindi and Byleistr and a biological mother named Farbauti, as well as having a wife named Sigyn. They are omitted from the films
*He could shape-shift into a woman.
*The Loki in the films is more misunderstood rather than being outright evil.
*Loki was just a baby when Odin finds him in the films. However, in the comics, Loki is a boy (equivalent to a human child) and that Loki from the future manipulated events for Odin to adopt him
*On that note, he was abandoned in a temple left to die. In truth, his father hid Loki's birth a secret both for the same reason: he was too short as a Frost Giant.
===Differences from Norse Mythology===
*Like in the comics, Loki's father is Laufey. However, in mythology, Laufey was the name of Loki's mother.
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