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

Despite five hours of streamed casting announcements, there are still several characters and actors fans are surprised won’t be in Avengers: Doomsday. (Read the full Avengers: Doomsday cast roster.) Some we knew about – such as Elizabeth Olsen’s Scarlet Witch and Benedict Cumberbatch’s Doctor Strange – but the following omissions are notable given the cosmic cross-over nature of what’s shaping up to be an Avengers,

After confirming that multiple X-Men cast members would return in the MCU, rumor has it that Marvel may be bringing back another.