H. Jon Benjamin
— Gummy / Tommy Morgan (voice)
Sarah Silverman
— Hanna Headstrong (voice)
Sam Seder
— Slim (voice)
Joe McGuirk
— (voice)
Waylon Jennings
— (voice)
Todd Barry
— Kitty the Kid (voice)
Mitch Hedberg
— Various Voices (voice)
David Frizzell
— (voice)
Carl P. Mayfield
— (voice)
Ken Mellons
— (voice)
Doug Stone
— (voice)