Konstantin Graudus is a German actor and voice actor born on August 4, 1965, in Gütersloh, Germany. He pursued formal acting training from 1985 to 1988 at the Hochschule für Musik und Theater in Hamburg. Following his education, he built a substantial career in German television and film, appearing in numerous popular series such as Tatort, Großstadtrevier, Adelheid und ihre Mörder, and Doppelter Einsatz, as well as the cult short film Staplerfahrer Klaus – Der erste Arbeitstag.

Alongside his on-screen work, Graudus established himself as a prolific voice actor, providing the German dubbing voices for a wide array of international actors and characters. He is the regular German voice for Michael Imperioli, most notably as Christopher Moltisanti in the acclaimed series The Sopranos. His voice work also includes characters in major video game franchises, such as Sten in Dragon Age: Origins and Thane Krios in Mass Effect 2.

In the realm of anime and animation, Graudus has contributed his voice to several projects. He voices the character Abraham in the 2021 animated series Yasuke. His other anime credits include roles in the long-running series Naruto Shippuden, where he voices the characters Hashirama Senju and Kotetsu Hagane. Beyond these, his animation work also encompasses the long-running German dub of the children's series Thomas & Friends and the character Bob Belcher in the animated sitcom Bob's Burgers. His extensive work as a voice actor extends to numerous radio plays and audiobooks, including prominent series like Die drei???. For his stage performance in Der Krawattenklub, he was honored with the Rolf-Mares-Preis in 2006.