Home People Louisa Herfert Louisa Herfert movies Louisa Herfert movies Louisa Herfert Movies (4) Mars (2007) She was 21 years old Lilly unter den Linden (2002) As Katrin Wollmann. She was 15 years old Das Delphinwunder (1999) As Nina. She was 13 years old Macht (1998) As Katja Sommer. She was 11 years old