Suggestions by @runilaisanerd

Josh Gad

as Happy Hogan in Marvel

Score: +1

Michael B. Jordan

as Falcon in Marvel

Score: +1

Burn Gorman

as Marvel Cinematic Universe in Actors who should join certain big franchises

Score: +1

Britt Robertson

as Captain Marvel in Marvel

Score: +3

Jude Law

as Vision in Marvel

Score: +2

Tristin Mays

as Scarlet Witch in Marvel

Score: 0

Aldis Hodge

as Black Panther in Marvel

Score: +2

Holland Roden

as Rescue in Marvel

Score: 0

Shioli Kutsuna

as Rumiko Fujikawa in Marvel

Score: +1

Chace Crawford

as Captain America in Marvel

Score: 0

Jake Gyllenhaal

as Iron Man in Marvel

Score: 0