Guest Stars Rolf Kanies as Stefan Tremmel Annika Ernst as Elena Lange Haley Louise Jones as Kirsten Maybach 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 Khoa Huynh as Agent 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
