Roman Wolko is a German voice actor, dialogue writer, and dialogue director born in Munich on July 1, 1985. He discovered his passion for voice acting at an early age and began working in the industry in 1994. His work primarily involves dubbing foreign-language films, television series, and animated productions into German.

Wolko has provided the German voice for a wide array of characters in anime series. Among his most prominent roles are Benimaru in That Time I Got Reincarnated as a Slime and its spin-off The Slime Diaries, and Ken Wakashimazu in various adaptations of Captain Tsubasa. He is also the German voice of the title character in Goblin Slayer and its film Goblin's Crown, as well as Kinrou in the Dr. Stone franchise, including Stone Wars and New World. His other notable anime dubbing credits include Onyankopon in Attack on Titan The Final Season Part 2, Shuji Hanma in Tokyo Revengers, Kronen von Wolff in No Guns Life, and Tobio Kageyama in Haikyu!!. Beyond these, his filmography encompasses a broad range of roles such as Eishin Kuga in Twittering Birds Never Fly: The Clouds Gather, Souma Ogata in Seven Days War, Takeichi in Human Lost, Hydorous in Bakugan Battle Planet, Realand in Genocidal Organ, Charles Phips in Black Butler: Book of Murder and Book of the Atlantic, Leo in First Squad - The Moment Of Truth, Kyouya Sata in Wolf Girl & Black Prince, Nightwing in Batman Ninja, and various characters in the Pokémon franchise, including Barry.

In addition to his anime work, Wolko is recognized as the official German dubbing voice for several actors, including Miles Teller, Alfie Allen, Anders Holm, Nicholas Braun, Kevin Jonas, Michael Welch, and Ben Feldman. He voiced Theon Greyjoy in the German version of Game of Thrones, a performance for which he was awarded the German Dubbing Prize in 2019. His voice can also be heard in major film franchises such as Harry Potter, Twilight, and the Divergent series.

Since 2008, Wolko has also worked extensively as a dialogue book author and dialogue director for dubbing productions and documentaries, further establishing his presence in the German voice-over industry.