Loki, in the Marvel Cinematic Universe (MCU), is a complex and charismatic character portrayed by Tom Hiddleston. He is the adopted brother of Thor and the God of Mischief, known for his cunning, charm, and unpredictable nature. Originating from Asgard, Loki was raised as royalty but later discovers his true lineage as a Frost Giant, which fuels his inner conflict and desire for power and identity. Throughout the MCU, Loki evolves from a villain seeking to conquer Earth and prove himself superior to his brother, to a more nuanced anti-hero who grapples with loyalty, self-worth, and redemption. His journey spans betrayal, death, resurrection, and even time travel, especially highlighted in the Disney+ series Loki, where he confronts the vast implications of the multiverse and his own nature. Despite his misdeeds, Loki remains a fan-favorite due to his wit, vulnerability, and the layers beneath his mischievous facade.