Sonicman

The Sonic series has had a few interesting NPCs who really stand out from all the others.

Professor Pickle in Sonic Unleashed, for example.

Or, in this case, Sonicman!

Sonicman is an ordinary guy in SONIC THE HEDGEHOG (aka Sonic '06) who stands near a fountain. When spoken to, he challenges Sonic to a footrace, believing the blue hedgehog to be a fan of his, rather than the other way around.

Also, there isn't a lot of fanart of this guy (he's not essential to the game, so he's easy to miss- maybe that explains it?) so I figured I'd add to what little there was.

EDIT: I've gone and had a look, and it seems there were literally 2 pictures of Sonicman on DA that were drawn by people, and 1 that was a screenshot of the character in-game. That's... kinda shocking actually. I'd have thought for sure there would be more than that.