Butters as Professor Chaos from South Park at Comikaze Expo
Butters as Professor Chaos from South Park at Comikaze Expo 2011.
Butters as Professor Chaos from South Park at Comikaze Expo 2011.
Mysterion and Professor Chaos from South Park at San Diego Comic-Con 2014.
AWESOM-O and Professor Chaos from South Park at Amazing Las Vegas Comic-Con 2018.
Mysterion and Professor Chaos from South Park at WonderCon 2014.