Klaus B. Wolf is a German actor and voice actor born Klaus Bernhard Wolf on August 27, 1964, in Gronau, Germany. His professional training includes an education at the Neue Münchener Schauspielschule from 1989 to 1992, and he further honed his vocal skills with a voice acting education at Bayerischer Rundfunk. He possesses a baritone vocal range.

Wolf has an extensive filmography in live-action German television and film, with numerous guest roles in series such as SOKO 5113, Der Alte, Polizeiruf 110, and Die Rosenheim-Cops. He has also appeared in major theatrical films like Der Untergang (Downfall) and Baader Meinhof Komplex.

As an anime voice actor, Wolf has contributed to the German dubs of several popular series. He is known for providing voices for multiple characters in the long-running series One Piece, including the roles of Vasco Shot, Banban, Bomba, and various supporting characters. In the series Yashahime: Princess Half-Demon, he performs the role of Toutetsu. His other anime voice credits include Masashi Nogawa in Sacrificial Princess and the King of Beasts, a school principal in Horimiya: The Missing Pieces, and Koujirou Higa in Magical Girl Spec-Ops Asuka. Beyond anime, his voice work extends to animated series such as Amphibia, where he voiced the character of Frog Jordan.