Felix Mayer is a German voice actor born on July 8, 1986, in Munich. He completed his acting education in his hometown, which laid the foundation for his career in voice acting. With over 200 roles to his name, he is recognized for his versatile vocal work across anime, animated series, and video games.

Mayer is perhaps most widely known as the German voice of Ash Ketchum in the long-running Pokémon anime, a role he performed from 2016 to 2023. Notably, he is the first male voice actor to provide the German voice for this iconic character. His repertoire includes other major anime protagonists and characters, such as Ichigo Kurosaki in Bleach, Sabo in One Piece, Mikaela Hyakuya in Seraph of the End, Leonardo Watch in Kekkai Sensen, and Zenji Marui in Food Wars! Shokugeki no Soma. He has also lent his voice to characters like Teruki Hanazawa in Mob Psycho 100, Chakuro in Children of the Whales, and Yusuke Urameshi in the 2023 adaptation of Yu Yu Hakusho.

Beyond anime, Mayer's voice is prominent in several major video game titles. He is the German voice of Peter Parker / Spider-Man in the Marvel's Spider-Man series and Cloud Strife in Final Fantasy VII Remake and its sequel, Final Fantasy VII Rebirth. He also voiced Ren Amamiya / Joker in Persona 5. His work extends to live-action dubbing, where he has provided the German voice for characters such as Jamie Tartt in the series Ted Lasso and Quentin Coldwater in The Magicians. Mayer is also active as a narrator for audiobooks.