He has had several, but you are probably thinking of Lex Luthor.
Doctor Octopus.
Paris toast
Kryptonite
ManrayThe Dirty Bubble
doctor otopus
of course VENOM(Eddie Brock)
red
its pink
Clark Kent
Skeletor - if I remember my child-hood TV shows correctly !
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He used to be his enemy at the start of the movie but became his friend at the end.