That should be Wiss because the apron is folded in a way that it looks like it says Wiss. lol
Here's Cumulus, I think you'll know why too (not looks, something else that is a Cartman trait, detailed here)
Joey (Because we all know it's secretly Sahse Grey! )
Stab Frenzy & Tallow
You guys in Texas & Your Dreamgirl
Okay okay, I'm just screwing with you guys!
Clubbedtodeath... Because we all know he doesn't really club baby seals