Guest Stars Corin Silva as Frank Volkheimer Jakob Diehl as Captain Mueller Luna Wedler as Jutta Rhashan Stone as French Museum Foreman Rosie Hilal as Frau Elena Bernd Hölscher as Bastian Ed Skrein as Herr Seidler Pascal Ulli as Dr. Heinrich Co Starring Kata Sarbó as Helga Jeremy Wheeler as Train Platform Officer Milo Quinton as Frederick Oscar Hoppe as Bunk Master