Don't forget the original Gwen Stacey.
She is not part of the MCU so she does not count
Wasn't necessarily limiting it to just the MCU
I went through the 'main page' cast list on IMDb (as opposed to going into the full cast and crew list) and came up with the following (regardless of whether or not the Marvel character is a character from the comics or one they created for the film(s)):
MCU:
Chris Pratt (Star Lord - GotG)
Vincent D'Onofrio (Wilson Fisk - Daredevil series)
Ty Simpkins (Harley - Iron Man 3)
Judy Greer (IMDb has her listed as being in Ant-Man - whether that's true or not I don't know)
Brian Tee (episode of Agents of SHIELD)
Outside MCU but still in the "Marvel family" (i.e. films made by other studios)
Bryce Dallas Howard (Spider-Man 3)
Omar Sy (X-Men: Days of Future Past)
Irrfan Khan (The Amazing Spider-Man)
Brian Tee (again, this time for The Wolverine)
Yay for Marvel alumni!!!!
