Guest Stars Wendi McLendon-Covey voices Mudflap Robert Ben Garant voices Critter Joe Lo Truglio voices Carl Joe Lo Truglio voices Scab Thomas Lennon voices Kenny Sarah Baker voices Bethany Sarah Baker voices Jacob H. Jon Benjamin voices Sidecar H. Jon Benjamin voices Biker Melissa Bardin Galsky voices Candace Larry Murphy voices One-Eyed Snakes Leader