Stefan Staudinger is a German actor and voice actor. He completed his acting education at the Hochschule für Schauspielkunst "Ernst Busch" in Berlin. In addition to his voice work, he has appeared in on-screen roles in German television series such as Tatort, Rosa Roth, and Alarm für Cobra 11, as well as the 2005 television film Die Schokoladenkönigin.

Staudinger is particularly well-known for his extensive work in dubbing, providing the German voice for a wide array of characters in both live-action and animated productions. A significant part of his career involves anime and animated series. He is the longstanding German voice of Inspector Koichi Zenigata in the Lupin III franchise, a role he has voiced in numerous productions. These include the films Lupin III: Dragon of Doom, Lupin III: Farewell to Nostradamus, Lupin III: Voyage to Danger, the 3D CGI film Lupin III THE FIRST, and Lupin III vs. Detective Conan The Movie. His other anime voice roles include Andre in Black Jack, Yasuo Uehara in Summer Days with Coo, Titan in the film Redline, and Katana in the series Coyote Ragtime Show. He also provided the voice for the character Kaoruko Someya in the series No Money. In other notable anime, he voiced Kitz Weilmann in Attack on Titan and Tomofumi Minami in Detektiv Conan. His broader animation voice work includes roles such as Dr. Briefs in Dragon Ball Z, Lloyd Asplund in Code Geass, and Starmon in Digimon Adventure 02.

Beyond anime, Staudinger is recognized as the regular German dubbing voice for several prominent actors, including Will Ferrell and Robert Picardo. He voiced Ferrell's characters in films such as Anchorman: The Legend of Ron Burgundy and its sequel, as well as Semi-Pro. For Robert Picardo, he is the German voice of The Doctor in Star Trek: Voyager and Richard Woolsey in Stargate SG-1 and Stargate Atlantis. His extensive dubbing portfolio also includes the role of Jonathan Carnahan in The Mummy film trilogy and various characters in numerous other television series and films.