Roland Hemmo is a German actor and voice artist, born on 25 February 1946 in Weißwasser, Germany. He is widely recognized for his extensive work in dubbing, providing the German voices for numerous characters in international film and television productions. His career in voice acting began in the late 1970s, and he has since lent his voice to thousands of roles. Hemmo is also an accomplished stage actor, having performed in over 1500 productions at prominent theaters in Berlin, including the Deutsches Theater and the Staatsoper. He trained at the Ernst Busch Academy of Dramatic Arts.

Within the realm of anime, Roland Hemmo is a prolific voice actor in the German dubbing industry. He is notably the regular German voice of the narrator in the Dragon Ball franchise, having voiced this role in Dragon Ball Z, Dragon Ball GT, Dragon Ball Z Kai, and Dragon Ball Super. Another of his most prominent anime roles is Dr. Jumba Jookiba, which he has voiced across various adaptations, including the original Lilo & Stitch film, the television series Lilo & Stitch: The Series, and the anime series Stitch!. He also voiced the character Abiru in the anime series That Time I Got Reincarnated as a Slime and its spin-off The Slime Diaries.

Hemmo's extensive anime filmography includes a wide range of other significant roles. He provided the voice for Gordon in the Spirit of Wonder OAVs and Scientific Boys Club. He voiced Bubu in The New Adventures of Kimba The White Lion and took on the role of the Detective in 8 Man After. Further demonstrating his versatility, his credits include Brother 6 in Afro Samurai, Keiichi Ikari in Paranoia Agent, Locke in an episode of Case Closed, Günther Gedritz in Monster, Philip Myers in Planetes, Dr. Fritz Kaiser in Lupin III: The Woman Called Fujiko Mine, Rashid Saluja in Magi: The Labyrinth of Magic, Inkalla in Utawarerumono, and Mitsuyoshi Anzai in The First Slam Dunk film. He also voiced the Ship Captain in the anime 7SEEDS.

Roland Hemmo has established recurring collaborations within the German dubbing industry, frequently voicing characters portrayed by specific actors in live-action productions. He is known as the German voice for actors such as Brendan Gleeson, for whom he has dubbed roles like Alastor "Mad-Eye" Moody in the Harry Potter films. He also regularly dubs for actors like John Hurt and David Ogden Stiers, the latter of whom originally voiced Dr. Jumba Jookiba in English. Beyond his work as a voice actor, Hemmo has also worked as a dubbing director, notably for the German version of Dragon Ball Z. His decades of work and thousands of roles have established him as one of the most successful and recognizable voice actors in the German dubbing industry.