Suggestions by @g_comicbookguy

Alan Hale Jr.

as Happy Hogan in MCU-1960's

Russell Johnson

as Erik Selvig in MCU-1960's

Vito Scotti

as Doctor Strange in MCU-1960's

Jeff York

as Star-Lord in MCU-1960's

Jeff Daniels

as Korg in MCU 90's (Reboot)

Dolph Lundgren

as Thor in Avengers: Age of Ultron (1995)

Jeffrey Nordling

as Steve Rogers/Captain America in Avengers: Age of Ultron (1995)

Peter MacNicol

as Bruce Banner/Hulk in Avengers: Age of Ultron (1995)

Jonathan Frakes

as Tony Stark/Iron Man in Avengers: Age of Ultron (1995)

Brent Spiner

as Vision in Avengers: Age of Ultron (1995)

Carrie-Anne Moss

as Maria Hill in Avengers: Age of Ultron (1995)

Elizabeth Henstridge

as Lt. Deanna Troi in Star Trek: The Next Generation Reboot

Jennifer Connelly

as Predacon Computer in Transformers: Beast Wars

Paul Bettany

as Maximal Computer in Transformers: Beast Wars

Benedict Cumberbatch

as Rampage in Transformers: Beast Wars

Joe Pesci

as Rocket in Guardians of the Galaxy-90's

Frank Welker

as Groot in Guardians of the Galaxy-90's

Peter Boyle

as Hank Pym in MCU 90s

Peter MacNicol

as Hulk in MCU 90s

Robin Shou

as Shang Chi in MCU 90s