Sebastian Hollmann is a German voice actor known for his work in the dubbing of anime series and films. According to professional synchronization databases, he has accrued over ten speaking roles in various productions. His career in the industry is marked by consistent work on several major anime franchises, often taking on roles that were originally performed by prominent Japanese voice actors such as Yuuki Kaji, Daisuke Namikawa, and Kiyotaka Furushima.

Hollmann is perhaps best recognized for his role as Konekomaru Miwa in the Blue Exorcist series. He voices the character in the later arcs of the anime, specifically in Blue Exorcist: Shimane Illuminati Saga and Blue Exorcist: Beyond the Snow Saga. These productions, which are German Simuldubs created at the G&G Studios in Kaarst, saw the return of the main cast from previous seasons, with Hollmann taking over the part of the studious and cautious exorcist-in-training, a role originally performed by Yuuki Kaji in Japanese.

Beyond Blue Exorcist, Hollmann has contributed to several other high-profile anime series. In the long-running superhero series My Hero Academia, he provides the German voice for two distinct characters: Hanta Sero, a student with tape-based abilities, and Togaru Kamakiri, a student from Class 1-B with blade-like appendages. He also appears in the classic series Bleach, voicing the character Bawabawa in the first German synchronization. His other notable roles include Zheren in Spice and Wolf: Merchant Meets the Wise Wolf, Kogaji in Saiyuki Reload: Zeroin, Sougi Takamasa in Corpse Princess, and Jiro Tsurumi in Star Blazers 2202: Space Battleship Yamato. He also lent his voice to the character Jongjin Wu in the series The God of High School.

A recurring theme in Hollmann's career is his participation in multiple projects that feature returning creative teams and established dubbing studios. His work on the Blue Exorcist sequels, in particular, demonstrates his integration into a consistent cast of German anime voice actors. Similarly, his two distinct roles in My Hero Academia show a versatility in voicing both supporting protagonists and minor characters within the same fictional universe. His body of work, while not exceptionally large, is composed of roles in many popular and enduring anime titles, establishing him as a familiar presence for German-speaking anime audiences.