Guest Stars Haley Louise Jones as Kirsten Maybach Rolf Kanies as Stefan Tremmel Annika Ernst as Elena Lange Paul Bohse as Leon Lange Angela Roy as Prof. Constanze Winterberg Caro Cult as Cora Seczenski Sophie Pfennigstorf as Peggy Tim Morten Uhlenbrock as Stefan 'Stevie' Pachmaier Milton Welsh as Michael Neerpasch Daniel Breitfelder as Lenny
