|“||Asgard is not a place... It's a people.||„|
|~ Heimdall to Thor after saving the Asgardians from Ragnarok.|
Heimdall is a fictional superhero appearing in the Marvel Cinematic Universe. He is a supporting character in Thor (2011) and Thor: The Dark World (2013), a cameo character in Avengers: Age of Ultron (2015), the pentagonist in Thor: Ragnarok (2017), and a posthumous minor character in Avengers: Infinity War (2018).
Marvel Cinematic Universe
|“||Be warned, I will honor my sworn oath to protect this realm as its gatekeeper. If your return threatens the safety of Asgard, Bifrost will remain closed and you will be left to die on the cold waste of Jotunheim.||„|
|~ Heimdall to Thor, Loki, Sif and the Warriors Three.|
Odin took away Thor's powers and sent him to Midgard, and was placed into Odinsleep, which unnerved Heimdall. While he was in sleep, Loki took place as the king of Asgard, and Heimdall was forced to be loyal to Loki. Heimdall noticed that Loki had returned from Jotunheim, and realized that his fear had come true (that he can't see anyone enter the land of the Frost Giants). Despite his concerns, he was ordered by Loki to temporarily to shut down the Bifrost Bridge.
Convinced of Loki's plans, Heimdall broke his oath and allowed Sif and the Warriors Three go to Midgard to find Thor. Enraged, Loki went to Heimdall, who was waiting for him in front of the Observatory. Loki released Heimdall from his title as gatekeeper, and Heimdall responded that he no longer had to obey. Despite his attempt to attack Loki, he was frozen by the Casket of Ancient Winters. Heimdall stayed frozen in place, and witnessed Loki let in the Frost Giants and King Laufey, and was unable to move until Thor called for his assistance. Heimdall defeated the Frost Giants that were behind him, and was able to place Hofund to re-open the Bifrost Bridge. Weakened, Heimdall was taken away by Sif and the Warriors Three for aid, as Thor confronted Loki.
Heimdall was re-entitled as gatekeeper upon Odin awakening, and Loki's defeat and apparent death. Despite the destruction of the Observatory, Heimdall could still use his senses and see Jane Foster still looking for Thor.
Thor: The Dark World
|“||The universe hasn’t seen this marvel since before my watch began. Few can sense, even fewer can see it. A world that’s infected can be dangerous. It is truly beautiful.||„|
|~ Heimdall to Thor on the Convergence.|
Avengers: Age of Ultron
|“||You're a destroyer Odinson. See where your power leeds.||„|
|~ Heimdall to Thor in his hallucination.|
While these events were happening, Heimdall had been banished by Odin (who was Loki in disguise) for neglecting his duties. He was replaced by Skurge, but disappeared before the trial, and presumably hid from the Asgardians.
|“||Asgard. She’s here.||„|
|~ Heimdall to the Asgardians on Hela.|
Avengers: Infinity War
|“||Allfathers, let the dark magic flow through me one last time.||„|
|~ Heimdall before his death by Thanos.|
Heimdall was loyal Asgardian, having sworn an oath to the King of Asgard (as shown when Loki took the throne). He showed himself to great sense of honor that he gave Sif and the Warriors Three his blessings to travel to Midgard. Despite this, he showed himself to be capable of disobeying, as he helped Thor in The Dark World, but immediately surrendered when caught by Odin.
- In the Marvel Comics, Heimdall is related to Sif as her brother, and was originally suppose to as shown in concept art for the first film.