- Mike Judge (Hank Hill / Boomhauer (voice))
- Kathy Najimy (Peggy Hill (voice))
- Pamela Adlon (Bobby Hill (voice))
- Stephen Root (Bill Dauterive (voice))
- Lauren Tom (Minh Souphanousinphone / Connie Souphanousinphone (voice))
King of the Hill — S4E20
Episode: Meet the Propaniacs
Air Date: 2000-04-16
Runtime: 22 min
Overview
Bobby's impromptu comedy at a propane sale prompts Strickland to send him on the road to entertain at other outlets, leading to a big trade show in front of the Texas propane president.