Guest Stars Haley Louise Jones as Kirsten Maybach Rolf Kanies as Stefan Tremmel Annika Ernst as Elena Lange Paul Bohse as Leon Lange Yung Ngo as Dr. Lee Kwon Angela Roy as Prof. Constanze Winterberg Jesse Albert as Andreas Sabine Vitua as Anna Zempel Steffen Groth as Adrian Schmaltz Tom Gerhardt as Winfried Treptekes Jana Schölermann as Tatjana Schmaltz
