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who plays the bad guy in iron man
Jeff Bridges portrays Obadiah Stane, also known as Iron Monger, appearing as the main antagonist in the 2008 film Iron Man.
when was iron monger created
The first character to use the alias Iron Monger is Obadiah Stane, who debuted in Iron Man #163 in October 1982.

Question: who created the character
Self-contained rewrite: who created iron monger