By the time Marvel's five-hour announcement about the "Avengers: Doomsday" cast was done, there was a surprisingly long line of empty chairs. But as long as the cast list is, we can't help but notice some huge absences from the roster, including some names we thought were practically mandatory.

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.