Tom Hiddleston's Loki return may be the most important detail revealed in Marvel Studios' Avengers: Doomsday cast announcement for multiple reasons.

Finally, the Loki TV series appeared to end with Loki sacrificing his freedom and his future to save a potentially infinite multiverse of parallel timelines, transforming his godly form into a cosmic structure that holds time together. And now, Marvel’s announcement suggests, he’ll be back in some capacity for Avengers: Doomsday.

Tom Hiddleston is officially returning as Loki in Marvel's Avengers: Doomsday, which should come as a huge shock to anyone who's watched the Loki TV show.