Thanos : Actor's who could have or should play the mad titan

Who is your Thanos?

In 1968 Thanos first appeared in Iron Man #55 In the 2010's he became one of cinema's greatest villains. In the years between I can't help but wonder who could have or should have played the character. Here, separated by decade, are groups of actors who I and possibly you believe could. Vote YES if you agree with the pick