Question: Who provides the voice for "Chef" in the Comedy Central series "South Park" on the "Starvin Marvin" episode where Chef tries to get residents to fight back in a parody of the movie Braveheart?
Sentence (from "Starvin' Marvin (South Park)"): In an accompanying subplot, after genetically engineered turkeys attack South Park residents, Chef rallies the residents to fight back, in a parody of the film "Braveheart".
Relevant evidence: Yes