Guest Stars Phylicia Rashad as Winnifred "Winnie" Guster Keith David as William "Bill" Guster Don McManus as Carl Wilcox Faune Chambers as Josephine "Joy" Guster Cassandra Sawtell as Brittany Wilcox Co Starring Liam James as Young Shawn Jill Morrison as Office Manager Noel Johansen as Theodore "Ted" Meltregger Jesse Haddock as Helper Elf Nels Lennarson as Moncrief Johnson Brian Calvert as Parent Sean Bell as Martial Arts Expert Matteo Mazziotti as Kid Ted Kozma as Frank Kelly Sarmiento as Parent #2