Kai Taschner is a German actor and voice artist born on August 25, 1957, in Munich. He was born into the film industry as the son of film editors Herbert and Ingeborg Taschner and made his first appearance in a dubbing studio at the age of thirteen, where he was discovered by a children's agent. His on-screen acting debut followed at the age of fifteen in the film Stunde Null directed by Edgar Reitz. Although he did not receive formal classical acting training, he trained as a graphic designer and also studied music at the Jazz-School in Munich.

Taschner has been active as a voice actor since 1988 and has lent his voice to well over nine hundred roles. In the realm of anime, he is known for his work on German-language adaptations of popular series and films. He voices the character Munin in the series Record of Ragnarok, a role documented in the German synchronization credits. He also takes on the role of William Shakespeare in the same series. In the film One Piece: Stampede, Taschner provides the German voice for the character Douglas Bullet. His other notable anime roles include Souun Ebisugawa in The Eccentric Family and Pharaoh 90 in Pretty Guardian Sailor Moon Crystal: Season III. His voice work also extends to other animated projects, such as the role of Pollux in the animated film Moon Return Home.

Beyond these specific credits, Taschner has a long history of voicing characters in German adaptations of international productions. He is recognized for being the German voice of iconic characters such as Mr. Burns in The Simpsons, Kif in Futurama, and Rick in Rick and Morty. He also voiced the character Jaken in the anime series InuYasha. His live-action dubbing work includes providing the German voice for actors like Warwick Davis as Griphook in the Harry Potter films, Peter Dinklage, and Philip Seymour Hoffman.

In addition to his work in front of the microphone, Taschner is also active behind the scenes in dubbing. He works as a dialogue book author and dialogue director for German synchronization productions. His career also encompasses work in theater, radio plays, audiobooks, and video games, where he is known for voicing characters such as Handsome Jack in the Borderlands series and Jim Raynor in StarCraft.