User blog comment:The Crazy Terror/PE Proposal: Chester (K.N.D.)/@comment-2059440-20191026155359

not even close, Father / Grandfather does worse but even they don't qualify due to the nature of the show - just like Invader Zim and Grim Adventures (..in fact Mandy arguably does the WORST stuff ever in KND / Grim Adventures crossover, but again.. it can't count).

the show is not serious enough to warrant pure evil characters - again, evil character =/= pure evil.