Heimdall

Heimdall was an all-seeing and all-hearing Asgardian who was the former Gatekeeper of Asgard and the guardian of its Bifrost. Despite vowing to obey the orders of Odin, Heimdall was prepared to commit treason if it meant protecting the Realms, as he allowed the Warriors Three to retrieve Thor from Midgard to defeat Loki and stop his plans to reignite the Asgard-Jotunheim War.

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