Avengers: Endgame - 10 Shocking MCU Cameos We Could Get

8. Phil Coulson

Having already sort of returned in Captain Marvel (the emphasis being very firmly on "sort of") MCU fans have had a timely reminder of just how much they miss Agent Coulson. He was a great supporting character in Phase 1, and his death in the first Avengers movie was the narrative beat required to really give that film the necessary emotional heft.

He was sort of revived in Agents of S.H.I.E.L.D. (the emphasis being very firmly on "sort of") but from there the character hasn't been able to journey back into the present of the MCU. That being said though, this is a film about time-travel and everything coming together, so there are innumerable ways we could see him again.

We could revisit the past and see a familiar face for a last time, or his importance in build-up to the Battle of New York could again be explored as our intrepid heroes seek to reunite themselves when they were at their absolute strongest.

Granted, Coulson's thing was very much just "spy stuff" and the stakes have sort of moved on from there (the emphasis being very firmly on "universe-spanning intergalactic genocide").