Guest Stars Cassady McClincy as Greta Hetfelderz (16) Adam Goldberg as Peter Stubbe Clark Moore as Jens Hetfelderz Callie McClincy as Greta Hetfelderz (10) Co Starring Michael Hyland Cole as Count of Bedburg Colton Medlin as Nils Vilhawer Matty Ferraro as Dieter Chloé Aktas as Celeste