-
Hulk

The Green Goliath has already been confirmed by Mark Ruffalo, who said that Hulk’s arc in Thor: Ragnarok and the Infinity War movies will feel like a solo flick. Furthermore, being one of the heavy-hitters of the Avengers, as well as a fan-favorite, it made no sense leaving him out.
Even more interesting, Banner will cohabit with the Hulk in the same body, which means that we will get the chance to see a more intelligent Jade Giant, one who can actually pose a threat to the best tacticians.
-
Black Widow

While Black Widow may seem useless against Thanos, she has proved herself time and time again against alien and robotic minions. Furthermore, she is still one of the best infiltrators in the MCU, so her skills are more than useful.
Seeing that Hulk will also be present, the Infinity War is their opportunity to take their relationship to the next level… If there is one to start with, of course…
48-47. Hawkeye and Wifey

Just like Black Widow, Hawkeye may be considered cannon fodder. But, even so, he is still someone the Avengers can count on. He is no fan-favorite, though, even if Joss Whedon did his best – speaking of which, did you know that he is married?
Of course you did, even if that came out of nowhere. So don’t be too surprised if Laura Barton will also be present, just to make his death even more tragic. Did we say that out loud?
46-45-44. Nick Fury, Maria Hill and Sharon Carter

SHIELD will, obviously, be present. Samuel L. Jackson still has 2 movies left on his contract, Maria Hill will follow him closely (as always and especially since she is now close to Stark), while Sharon Carter is said to be Steve Rogers’ love interest (if she doesn’t die during the Civil War).
But, just like with many other characters so far, don’t expect for these ones to have meatier roles – simple cameos will be more than enough, to remind the fans that they still exist.
