Claus Thull-Emden is a German actor and voice actor known for his work in theatre, television, and dubbing. He was born on February 13, 1979, in Euskirchen, Germany. Thull-Emden trained at the Schauspielstudio Gmelin in Munich from 1998 to 2001. His voice is characterized as a baritone, and he has performed voice work for various characters in German-language productions.

In the field of anime voice acting, Thull-Emden is known for his role as Ka Kobun in the German dub of the series Magi: The Labyrinth of Magic. He provided the German voice for the character, who is originally voiced by Kenichi Suzumura. He is also recognized for his work in the German dub of Voltron: Defender of the Universe, where he voiced the character Prinz Bokar. This was for the second synchronization of the series, produced around 2008 and 2011, with the original English voice provided by Lennie Weinrib.

Beyond his anime roles, Thull-Emden has voiced characters in numerous other media, particularly in German audio drama productions. He has worked extensively with TITANIA Medien GmbH, lending his voice to productions such as Der Schimmelreiter, Die Zeitmaschine, and various Sherlock Holmes stories. He also voiced roles in the German audio drama series Company of Heroes.

His work as a voice actor is one facet of a broader career as a stage and screen actor. He has performed on prominent German boulevard stages, including the Theater an der Kö in Düsseldorf and the Theater am Dom in Cologne, frequently under the direction of René Heinersdorff. On television, he is known for his role as the butler Justus Stiehl on the ARD series Verbotene Liebe, a character he played from 2007 to 2014. He also appeared in episodes of series such as SOKO 5113 and In aller Freundschaft.