Suggestions by @mikeypascual

Dolph Lundgren

as 1990's in Actors who could be or could have been Kraven the Hunter

Clancy Brown

as 1990's in Actors who could be or could have been Kraven the Hunter

Michael Rosenbaum

as 2010's in Actors who could be or could have been Kang the Conqueror

Michael Rosenbaum

as 2010's in Actors who could be or could have been Brainiac

Clancy Brown

as 2000's in Actors who could be or could have been Omni-Man

Clancy Brown

as 2000's in Actors who could be or could have been General Zod

Hugo Weaving

as 2000's in Actors who could be or could have been General Zod

Hugo Weaving

as 2000's in Actors who could be or could have been Brainiac

James Earl Jones

as 1970's in Actors who could be or could have been Brainiac

James Spader

as 2000's in Actors who could be or could have been Kang the Conqueror

Leonard Nimoy

as 1970's in Actors who could be or could have been Kang the Conqueror

Leonard Nimoy

as 1970's in Actors who could be or could have been Brainiac

Christopher Plummer

as 1960's in Actors who could be or could have been Brainiac

Ricardo Montalban

as 1960's in Actors who could be or could have been Brainiac

Clancy Brown

as 1990's in Actors who could be or could have been Brainiac

Clancy Brown

as 1990's in Actors who could be or could have been Kang the Conqueror

Dolph Lundgren

as 1990's in Actors who could be or could have been Lobo

Clancy Brown

as 1990's in Actors who could be or could have been Lobo

Anthony Daniels

as C-3PO in Star Wars: The Clone Wars (live-action; 2002-2005)

Ron Perlman

as Gha Nachkt in Star Wars: The Clone Wars (live-action; 2002-2005)