|Portrayed by||Tom Hiddelston|
Loki Laufeyson, though thus far unseen on the series, is in many ways the catalyst of all that has gone on with Agent Phil Coulson, being the one who skewered him with an Asgardian staff. Coulson, in the film of The Avengers, was then pronounced dead. From the Pilot on, cryptic remarks from people such as Agent Maria Hill made it clear that his resurrection is not as simple as it seems, a concept clarified from T.A.H.I.T.I. onwards. He is arguably a major reason why S.H.I.E.L.D. needs to exist.
In the comic books, Loki has a long history of interfering in human affairs, and creating super-villains, including Carl Creel, so he could have a finger (if not a whole hand) in practically any of the problems which have plagued the team.
When first seen in the MCU (in "Thor"), Loki is an Iago-like figure, feeding the ego and doubts of Thor, fomenting his rebellion against their father. Of all the figures in the film, he bears the most discernible resemblance to his Norse depiction as a constant maker of mischief.
- Since February 2014, Marvel have been publishing "Loki, Agent of Asgard" as an ongoing comic book series.