Suggestions by @lukejamesbennett

David Prowse

as Alexei Shostakov in Black Widow {1980}

Cary Grant

as Alexei Shostakov in Black Widow (1961)

Vincent Price

as Doctor Doom in Avengers: Doomsday (1966)

Ossie Davis

as Sam Wilson in Avengers: Doomsday (1966)

Burt Lancaster

as Scott Summers in Avengers: Doomsday (1966)

James Stewart

as Scott Lang in Avengers: Doomsday (1966)

Boris Karloff

as Erik Magnus Lehnsherr in Avengers: Doomsday (1966)

Bela Lugosi

as Charles Xavier in Avengers: Doomsday (1966)

Charlton Heston

as Thor in Avengers: Doomsday (1966)

Christopher Lee

as Loki in Avengers: Doomsday (1966)

Montgomery Clift

as Bucky Barnes in Avengers: Doomsday (1966)

Cary Grant

as Alexei Shostakov in Thunderbolts* (1965)

David Prowse

as Alexei Shostakov in Thunderbolts* (1985)

David Prowse

as Alexei Shostakov in Thunderbolts* {1985}

Red Guardian (Alexei Shostakov)

as Russian in Characters by heritage

Red Guardian (Alexei Shostakov)

as Kenta Miyake in Which western/American characters do you want Japanese voice actors to voice

Red Guardian (Alexei Shostakov)

as Russian in Fictional Characters/Actors/Actresses by heritage (My Version)

Red Guardian (Alexei Shostakov)

as Roy Thomas in Most notable comic characters by creator

Red Guardian (Alexei Shostakov)

as Main Marvel Universe in Collision

Red Guardian (Alexei Shostakov)

as David Harbour in If DC actors had Marvel roles