The Thinker by Gil Kane

Okay, I'm try'n not to think about this too much, but it seems like this guy could easily be called The Over-thinker.  The think'n in the last three panels here is too much food for thought, I think.  His debonair pencil stash and high IQ remind me of Tony Stark, but let's see if we can think of other characters he resembles.  Put on your think'n caps