Oliver Nitsche is a German voice actor known for his work in dubbing, providing the German voice for numerous characters in international films and television series. He is notably recognized in the anime community for voicing Kiyotaka Ijichi in the German-language version of the popular anime series Jujutsu Kaisen, a role he also reprised for the film Jujutsu Kaisen 0.

His career encompasses a wide range of dubbing work across different genres and media. In addition to his role in Jujutsu Kaisen, Nitsche has lent his voice to other prominent anime titles. These include voicing Dyne in Sword Art Online: The Movie - Ordinal Scale, Galbrecht in Monster, Polpo in JoJo's Bizarre Adventure: Golden Wind, and David in Welcome to Demon School! Iruma-kun. He has also contributed to long-running series such as Detektiv Conan, where he voiced the character Toshihisa Manda.

Beyond animation, Nitsche's voice work extends to live-action productions dubbed into German. He has provided the German voice for actors in a variety of films, including roles in Die jüngste Tochter, Der Rattenfänger, and Mea Culpa. His television dubbing credits are extensive, featuring work on series such as Hudson & Rex, The Curse, Criminal Minds, and Death in Paradise. This extensive filmography, with over fifty credited roles, highlights his versatility and consistent presence in the German dubbing industry.