Enough Loomis Heads Already!

I wanted to include something non-Loomis here today, but time got the best of me. Here's page 20's exercises.  Why are all these older folks?. This is from FWAP (AnCome one, it's easy, and you don't have anything to loose! Thanks for dropping by!drew Loomis' "Fun With A Pencil").  I think I understand the building process enough to experiment later on.  I'll apply "Loominess" to a future drawing, and see.
I'm working on a sketch of one my favorite hero characters from the late 60s.  Clues: Name starts with a "U", and it is not "Underdog", and it is not a robot (I think). Here's the deal.  If you guess it before I post it, I'll sketch something for you!  The "winner" must guess using Twitter (I'm @gonzalexx) OR, just leave a comment here! Only one correct guess. Hope you folks try!  Thanks for dropping by!