Marcel Liedko is a German voice actor known for his work in dubbing anime series and films for German-language audiences. He provides the German voice for characters in several popular anime franchises. His most prominent roles include voicing the character Tetsutetsu Tetsutetsu in the series My Hero Academia, a role he also reprised for the film My Hero Academia THE MOVIE: World Heroes' Mission. He is also recognized for voicing Ryoma Terasaka in the Assassination Classroom television series and in the subsequent film Assassination Classroom the Movie: 365 Days' Time.

Beyond these central roles, Liedko's career encompasses a range of other voice work in anime. He has lent his voice to additional characters such as Yezi in The Legend of Hei - Die Kraft in Dir and had a minor role in Lu Over the Wall. In various anime series, he has voiced background and supporting characters, including roles in Blue Exorcist: Kyoto Saga, Phantasy Star Online 2: The Animation, and multiple episodes of Hunter x Hunter. His work also includes the character Yamato in the German dub of My Teen Romantic Comedy: SNAFU and Gert Berger in Star Blazers 2199: Space Battleship Yamato.

The information available about Marcel Liedko's career primarily documents his voice roles in German-language dubs of Japanese anime. Details regarding recurring collaborations with specific directors, dubbing studios, or other voice actors, as well as formal awards or notable achievements within the industry, are not documented in the accessible and reliable sources.