Chuck Mangione is an American flugelhorn player and musician. He is the Mega-Lo-Mart spokesperson; his advertisements are frequently seen throughout the show. Because he misread the contract, he is responsible for appearing at every store opening, leaving little time for himself as they open 400 stores a year. He resides inside the toilet paper shelf inside the Arlen Mega-Lo-Mart, where he lives off of store food and plays the video games. He chews through the security camera wires to stay unseen and undetected inside the store. He is part of a running gag which has him start to play "Feels so Good" no matter what song he is currently playing.
- "Luanne's Saga"
- "Peggy the Boggle Champ
- "The Unbearable Blindness of Laying"
- "Propane Boom"
- "Death of a Propane Salesman"
- "And They Call it Bobby Love
- "De-Kahnstructing Henry"
- "Take Me Out of the Ball Game"
- "The Texas Skillsaw Massacre
- "Megalo Dale"
- "Pour Some Sugar on Kahn"