Gabriel Kemmether is a German stage actor and voice artist whose career encompasses classical theatre, musical performance, and extensive work in dubbing foreign-language films and television series. Born in Augsburg in 1977, he pursued formal acting training at the Hochschule für Musik und Darstellende Kunst in Frankfurt am Main from 1998 to 2002. Following his studies, he began his professional stage career at Theater Rudolstadt, where he performed from 2002 to 2008 and received a award from the theater's support association for his portrayal of Johannes Pinneberg in Hans Fallada's novel adaptation Kleiner Mann was nun. Since the 2008-2009 season, he has been a permanent ensemble member at Theater Heilbronn, taking on diverse roles in plays and musicals such as Dantons Tod, The Rocky Horror Show, and Männer, and has been honored twice with the Kilianpreis for outstanding acting performances by the theater's support association.

Beyond his stage work, Kemmether has built a substantial career in voice acting, providing the German dubbing voices for characters in over sixty films and television series. His voice work encompasses a wide range of genres, including animation, live-action features, and anime. In the realm of anime, he is recognized for lending his voice to characters in the German-language versions of several productions. A notable example is his role as Tou no Chuujou in the film Murasaki Shikibu The Tale of Genji, based on the classic literary work. His other anime dubbing credits include Keller in Izetta, the Last Witch, Rodrigo in Cop Craft, Hashana Dorlia in Sword Oratoria, Akira Kamikoda and Norma Co Igloo in GATE, and a role in Special 7 Special Crime Investigation Unit. He has also voiced characters in the films Night on the Galactic Railroad and Komada A Whisky Family. While his dubbing work features a variety of actors and roles across different productions, a pattern of recurring collaboration with specific directors or dubbing studios is not prominently documented in the available information.

In addition to his acting and dubbing, Kemmether is recognized for his musical abilities. He is a singer and multi-instrumentalist who has created and performed several solo programs at Theater Heilbronn, blending storytelling with songs he composes and arranges, often incorporating instruments such as guitar, piano, violin, and even more exotic ones like the hurdy-gurdy and dulcimer. His musical versatility has also led to his participation as a narrator in a recording of Carl Eberwein's incidental music for Goethe's Faust, performed by the Thüringer Symphoniker Saalfeld-Rudolstadt and the Kammerchor der Hochschule für Musik Franz Liszt Weimar. This combination of sustained stage work in leading German theaters, a prolific and wide-ranging voice acting career that includes significant anime titles, and recognized musical talent constitutes his notable professional achievements.