Frank Muth is a German actor and voice actor born on March 20, 1959, in Würzburg, Germany. He received his acting training at the renowned Otto-Falckenberg-Schule in Munich and began his career on stage, performing at theaters in Bonn, Hanover, Munich, Berlin, and Düsseldorf. Alongside his work in television and film, Muth has built a substantial career in voice acting since 1986, lending his voice to numerous characters in German dubs of international productions.

In the realm of anime and animation, Frank Muth is recognized for a wide range of roles. He is the German voice of the character Porthos in the anime series Anime Sanjushi, also known as D'Artagnan und die drei Musketiere. His other prominent anime voice roles include the iconic Pokémon Mewtwo in several films such as Pokémon: The First Movie, Pokémon: Mewtwo Returns, and the live-action film Pokémon Detective Pikachu. He has also voiced characters in long-running and popular series, including Bora in Dragon Ball, Bismark in One Piece, Salib Ashman in Mobile Suit Gundam Seed, Yusho Sakaki in Yu-Gi-Oh! Arc-V, and a role in Attack on Titan. His work extends to animated series like Transformers, X-Men, and The Simpsons.

Beyond anime, Muth's voice acting career is extensive, covering a broad spectrum of film and television. He has dubbed the voices of many prominent actors, such as providing the German voice for George Clooney in his early career, David Hasselhoff in various projects, Ty Burrell in Evolution, Giancarlo Esposito in Smoke, and Kelsey Grammer in Middle Men. His television dubbing work is equally prolific, with credits including roles in series like Law & Order, Person of Interest, and CSI: Miami. In addition to his voice work, Muth has maintained an active on-screen career with appearances in numerous German television series, including Tatort, Derrick, Der Alte, and Verbotene Liebe.