If you've paid attention in this game, there's absolutely no sign of the infamous Charlie Brown at all. However, if you look through the ROM in an image editor, such as Tile Layer Pro...
Well look who we have here! It's good ol' Charlie Brown himself! I also re-colored the sprites to look more Charlie Brown-ish in Tile Layer Pro. This is by no means what his in-game palette would've looked like, it's just colored using his colors so you can see it better.
Now the thing is, his tile set here is mixed in among the tile set for the Pogo event. Judging from his sprites here, it seems he was intended to be at the end of the course waiting for Snoopy or Spike. He could've possibly showed up in other events too, but his role is rather uncertain. I think he might have used Woodstock's palette, judging from the fact the two have similar coloring and it would've made sense just to lazily slap that on there for him and call it good.
Another thing that points this to being unused is that in the Japanese remake, "Donald Duck", where Charlie Brown is in the USA edition has been completely wiped out and some Japanese characters have been put in, which I have no idea what it means. Looking at Wikipedia, the article says that the Donald Duck game came first, but since there's no sources cited on that article, and the fact that Wikipedia can have wrong information posted at any time (or someone writing "lol big tits r funny"), I don't trust it as a legit source right now.
Again, there's other stuff in the ROM that intrigues me that I've never seen, but I'll come back to it once I've done a little more research and show them off to you as I find out what's up.
