Suggestions by @g_comicbookguy
2,132 suggestions
Val Kilmer
as Aldrich Killian in MCU 90's (Reboot)

Robert Wagner
as Skurge in MCU 90's (Reboot)

Sidney Poitier
as Heimdall in Thor:Ragnarok-1960's

DeForest Kelley
as Skurge in Thor:Ragnarok-1960's
Russell Johnson
as Erik Selvig in Marvel Cinematic Universe (1980s)

Roger E. Mosley
as War Machine in Marvel Cinematic Universe (1980s)
Maria Grazia Cucinotta
as Ava Starr in MCU 90's (Reboot)
Wallace Shawn
as Arnim Zola in MCU 90's (Reboot)

Ian McNeice
as Arnim Zola in MCU 90's (Reboot)

Christopher McDonald
as Justin Hammer in MCU 90's (Reboot)

Soon-Tek Oh
as Wong in MCU 90's (Reboot)

Oliver Platt
as Harold "Happy" Hogan in MCU 90's (Reboot)

Chyler Leigh
as Kate Bishop in Marvel in the 90s

Mark Curry
as Sam Wilson in WHAT IF the MCU was made in the 90s

Julie Bowen
as Virginia "Pepper" Potts in WHAT IF the MCU was made in the 90s

Brent Spiner
as Vision in WHAT IF the MCU was made in the 90s
Joshua Jackson
as Peter Parker in WHAT IF the MCU was made in the 90s

Alan Rickman
as Dr. Stephen Strange in WHAT IF the MCU was made in the 90s

Peter MacNicol
as Dr. Bruce Banner in WHAT IF the MCU was made in the 90s

Dolph Lundgren
as Thor Odinson in WHAT IF the MCU was made in the 90s