Nilz Bessel is a German actor, voice-over artist, and dubbing voice actor. He was born in Bargteheide, Germany, in 1985. He completed his acting training at the Freie Schauspielschule Hamburg from 2005 to 2008 and has been working as a freelance actor since that time. His voice is characterized as a baritone, and he has professional proficiency in English in addition to his native German.

In animation and dubbing, Bessel has contributed German voice performances to several animated series and films. He is the German voice of the character Simon in the anime series Dragon's Dogma. He also provided the voice for the character Ketrokur in the German dub of the Netflix animated series Hilda and voiced Gerald in the German dub of the DreamWorks Animation series The Boss Baby: Back in Business, which is titled Ein lustiges Hundeleben in German.

Beyond animation, Bessel has an extensive career in live-action film, television, and theater. His television credits include an episodic role as Jonas in the popular German children's series Die Pfefferkörner. He has performed in numerous stage productions at theaters such as Theater Schloss Maßbach, the Gostner Hoftheater, and the Allee Theater, taking on roles ranging from classical works to contemporary pieces. His film appearances include a small role in the 2007 feature film Robert Zimmermann wundert sich über die Liebe. He has also performed in commercial, image film, and music video productions.