Esther Frericks
Episode: 1x01 | Airdate: Sep 23, 2006
Season 1
Johannes Rieks
Episode: 1x02 | Airdate: Nov 18, 2006
Matthias Göbel
Episode: 1x03 | Airdate: Jan 27, 2007
Nils-Heiko Hutter
Episode: 1x04 | Airdate: Apr 14, 2007
Peter Dietrich
Episode: 1x05 | Airdate: Jun 9, 2007
Season 2
Martin Trautz
Episode: 2x01 | Airdate: Sep 15, 2007
Sonja Bartelt
Episode: 2x02 | Airdate: Nov 3, 2007
Gene Allen
Episode: 2x03 | Airdate: Dec 15, 2007
Arvid Bollmann
Episode: 2x04 | Airdate: Jan 19, 2008
Jens Ohlemeyer
Episode: 2x05 | Airdate: Apr 5, 2008
Olufemi Smith
Episode: 2x06 | Airdate: May 31, 2008
Season 3
Jan May
Episode: 3x01 | Airdate: Sep 13, 2008
Ole Bischof
Episode: 3x02 | Airdate: Nov 1, 2008
Markus Kapries
Episode: 3x03 | Airdate: Dec 20, 2008
Marcus Gangloff
Episode: 3x04 | Airdate: Jan 17, 2009
Markus Okuesa
Episode: 3x05 | Airdate: Apr 18, 2009
Nino Haase
Episode: 3x06 | Airdate: May 23, 2009
Season 4
Hans-Martin Schulze
Episode: 4x01 | Airdate: Sep 12, 2009
Oliver Wojahn
Episode: 4x02 | Airdate: Oct 31, 2009
Amelie Mooseder
Episode: 4x03 | Airdate: Dec 19, 2009
Torsten Reichan
Episode: 4x04 | Airdate: Jan 16, 2010
Hans Martin Wismar
Episode: 4x05 | Airdate: Apr 10, 2010
Thorsten Engelmann
Episode: 4x06 | Airdate: May 8, 2010
Season 5
Thorsten Knaack
Episode: 5x01 | Airdate: Sep 18, 2010
Ria Sabay
Episode: 5x02 | Airdate: Oct 23, 2010
Heiko Schumacher
Episode: 5x03 | Airdate: Dec 18, 2010
Deaon Maxwell
Episode: 5x04 | Airdate: Jan 15, 2011
Alexandra Stegmann
Episode: 5x05 | Airdate: Apr 2, 2011
Tobias Rieder
Episode: 5x06 | Airdate: Jun 4, 2011
Season 6
Gil Kwamo-Kamdem
Episode: 6x01 | Airdate: Sep 17, 2011
Klaus Hermann
Episode: 6x02 | Airdate: Oct 15, 2011
Oliver Wallkötter
Episode: 6x03 | Airdate: Dec 17, 2011
Alexander Bitsch
Episode: 6x04 | Airdate: Mar 17, 2012
Reint Janssen
Episode: 6x05 | Airdate: Apr 14, 2012
Peter Grünberg
Episode: 6x06 | Airdate: May 5, 2012
Season 7
Manuela Kurrat
Episode: 7x01 | Airdate: Sep 22, 2012
Mario Anastasopoulos
Episode: 7x02 | Airdate: Nov 17, 2012
Bernd Stadelmann
Episode: 7x03 | Airdate: Dec 15, 2012
Björn Schmitz
Episode: 7x04 | Airdate: Jan 12, 2013
Andreas Mai
Episode: 7x05 | Airdate: Mar 16, 2013
André Bergermann
Episode: 7x06 | Airdate: May 11, 2013
Season 8
Pio Suh
Episode: 8x01 | Airdate: Sep 7, 2013
David Fritsch
Episode: 8x02 | Airdate: Nov 16, 2013
Anish Pulickal
Episode: 8x03 | Airdate: Dec 21, 2013
Michael Jentzsch
Episode: 8x04 | Airdate: Feb 15, 2014
Caroline Gessner
Episode: 8x05 | Airdate: Mar 29, 2014
Maximilian Heizmann
Episode: 8x06 | Airdate: May 3, 2014
Season 9
Liane Weber
Episode: 9x01 | Airdate: Sep 13, 2014
Peter Meiners
Episode: 9x02 | Airdate: Nov 15, 2014
Jenna Timm
Episode: 9x03 | Airdate: Dec 20, 2014
Jan-Marco Montag
Episode: 9x04 | Airdate: Jan 10, 2015
Maria Kleinebrahm
Episode: 9x05 | Airdate: Apr 25, 2015
Season 10
Robert Klauß
Episode: 10x01 | Airdate: Sep 12, 2015
Markus Schulz
Episode: 10x02 | Airdate: Oct 24, 2015
Alle gegen Raab
Episode: 10x03 | Airdate: Dec 19, 2015