Chuck Knipp (born 1961) is an American Canadian (dual citizenship) comedian best known for his controversial vocal characterisations heard on radio - the "Mammy Welfare Queen- 'Shirley Q. Liquor', histrionic 'North Dakota Marge', Orangefield's own 'Delbert Peveto' and the tragic searcher for any kind of spirituality, 'Betty Butterfield'.Knipp also does radio vocal impersonations of Madalyn Murray O'Hair, Al Gore, Barbara Jordan, H. Ross Perot, U.S.