Craig was mosquito. Who for a little bit we thought was Kyle, until we were told Craig was mosquito, and we figured Kyle was kite, because he was the one who said “you bastards”.
Crunch looked like Butters, but we know butters was Chaos.
It's Clyde.
I've seen a little speculation elsewhere about who Mintberry Crunch is, but no one (in this limited sample) suggested a major character, except for a few suggesting Kenny (obviously before this episode aired).