Stefan Naas is a German voice actor, speaker, and author, born on November 3, 1978, in Duisburg. He has built a extensive career lending his voice to a wide variety of projects, including film and television synchronizations, video games, and audio dramas. His voice is also familiar to audiences from his work as a narrator and off-screen commentator for numerous television programs, such as stern TV, Martin Rütter – Die Welpen kommen, and Durch die Wildnis – Das Abenteuer Deines Lebens.

Naas is particularly active in the field of anime synchronization, providing the German voices for numerous characters. He is the German voice of Shun Ibusaki in the long-running series Food Wars! Shokugeki no Soma, a role he performed from 2016 to 2021. He also voiced the character Johnny in the series The Magnificent Kotobuki. In the K franchise, he is the voice of Kotosaka, a role he performed both in the film K: Missing Kings and in the subsequent K: Seven Stories movie series. His other notable anime roles include Naomasa Tsukauchi in My Hero Academia, Hayakawa in Blast of Tempest, and a small role as a doctor in the film Summer Ghost.

Beyond his work in animated productions, Naas has a comprehensive portfolio in other voice-acting fields. He has voiced characters in popular video game franchises, including The Witcher 3: Wild Hunt and Battlefield V. In the realm of audio dramas, he has been featured in productions such as Die drei??? Kids and Gregs Tagebuch. In addition to his voice work, Stefan Naas is also an author, having published the children's book Paul und Poppy in December 2019.