Patrick Keller is a German voice actor known for his extensive work in dubbing anime and live-action series and films. Born on October 4, 1991, he was first motivated to pursue voice acting after completing an internship at a dubbing studio, which led to private speech training. He began working regularly in the field in 2012 and has since lent his voice to over 300 characters.

Keller is perhaps best known as the longstanding German voice of the protagonist Kazuto Kirigaya, also known as Kirito, in the long-running franchise Sword Art Online. This includes the role in the main series, films such as Sword Art Online The Movie: Ordinal Scale and Sword Art Online Progressive Scherzo of Deep Night, and the Alicization arcs. His other prominent anime roles include the cunning prince Tahoumaru in Dororo, the troubled yet gifted magician Keith Claes in My Next Life as a Villainess All Routes Lead to Doom, the ambitious young boxer Morisuke Yaku in Haikyu Land vs. Air and its film Haikyu The Dumpster Battle, and the android Gamma 2 in Dragon Ball Super Super Hero. He also voiced the protagonist Saito Hiraga in The Familiar of Zero, Yo Shindo in My Hero Academia, Tetsuya Kuroko in the film Gekijōban Kuroko no Basuke Last Game, Daisuke Doujima in the Netflix series revisions, and Aay in the Bakugan Battle Planet franchise. In the world of video games, Keller provided the German voice for the beloved character Zack Fair in Final Fantasy VII Remake.

In addition to his anime work, Keller has voiced characters in numerous live-action productions, such as Ivar the Boneless in the historical drama Vikings and Jonah Heidelbaum in the series Hunters. Since August 2022, he has been a member of the Dice Actors, a YouTube project he co-hosts with fellow voice actors Rieke Werner, Patrick Baehr, Christian Zeiger, and Tim Schwarzmaier.