Heimdall () is a fictional character appearing in American comic books published by Marvel Comics. The character is based on the Norse deity Heimdall. Heimdall is described as all-seeing and all-hearing and is the sole protector of the Bifröst in Asgard. Idris Elba portrayed the character in the Marvel Cinematic Universe films Thor (2011), Thor: The Dark World (2013), Avengers: Age of Ultron (2015), Thor: Ragnarok (2017), Avengers: Infinity War (2018), and Thor: Love and Thunder (2022). Publication history Heimdall first appeared in a comic in Journey into Mystery #85 (October 1962) and was created by Stan Lee, Larry Lieber and Jack Kirby. Fictional character biography Heimdall is the brother of the warrior Sif. He is the all-seeing and all-hearing guardian sentry of Asgard who stands on the rainbow bridge Bifröst to watch for any attacks to Asgard. He partly won the role through using his eyesight to see an army of giants several days' march from Asgard, allowing them to be defeated before they reached Asgard, and making their king a prisoner. For ages, he stood as the guardian of Asgard, defending the city's gates from any intruders, and was one of the most trusted servants of Odin. In his first appearance, Loki had been imprisoned in a tree until his plight caused someone to shed a tear. Heimdall accidentally freed him when Loki caused one of the leaves of the tree to poke him in the eye. Later Heimdall warned Odin of a threat he had perceived though he did not know exactly what manner of danger it was. Odin wove his own magic and found a Vanna, a wind sprite that was one of the few entities able to physically elude Heimdall. Odin praised Heimdall's courage for warning the others, even though he knew not what he was warning about and thus risking ridicule. When next seen, he battled Thor to prevent him from entering Asgard; He then battled Thor to prevent him from leaving Asgard as Odin did not want him to see Jane Foster again. Heimdall was then immobilized by Seidring in a cuboid of ethereal force when Seidring stole the Odinforce. Some time later, he encountered the Recorder during the attack of the superstrong monster Mangog. Later still, Heimdall battled Thor at Loki's command. In the prophecy of Ragnarok, he severed the Rainbow Bridge, and sounded Gjallarhorn. He traveled to Earth with Kamorr the