Guest Stars Rolf Kanies as Stefan Tremmel Annika Ernst as Elena Lange Haley Louise Jones as Kirsten Maybach Paul Bohse as Leon Lange Yung Ngo as Dr. Lee Kwon Angela Roy as Prof. Constanze Winterberg Reiner Schöne as Prof. Dr. Stefan Jäger Guido Broscheit as Prof. Christian Berkenbusch Jeanne Goursaud as Lina Christina Petersen as Samantha Martin Klempnow as Bernd Stössel
