Guest Stars Haley Louise Jones as Kirsten Maybach Rolf Kanies as Stefan Tremmel Annika Ernst as Elena Lange Yung Ngo as Dr. Lee Kwon Angela Roy as Prof. Constanze Winterberg Jennifer Poppek as Sabine Steenken Bianca Warnek as Petra Simon Böer as Boris Martin Semmelrogge as Horst Drossard Steffen Will as Stefan Runge Suzan Anbeh as Chiara Drossard Sönke Möhring as Uwe Drossard Daniel Nowak as Ehemann Jasmin Arzt as Ehefrau Khoa Huynh as Agent
