Martina Duncker is a German actress and voice actress, born in 1962, who has built an extensive career spanning several decades, with a particular focus on dubbing for film and television. She is widely recognized for her contributions to the German-language versions of numerous anime series and films, lending her voice to a broad spectrum of characters.

Duncker's voice can be heard in many notable anime productions. One of her prominent roles is Aramis in the anime series Anime Sanjushi, also known as D'Artagnan und die drei Musketiere. She also voiced the role of Königin (the Queen) in the Studio Ghibli film Tales from Earthsea. Her film work in anime includes roles in Vampire Hunter D: Bloodlust as Caroline, InuYasha the Movie 4: Fire on the Mystic Island as Kanade, and Magnetic Rose as Anna.

In addition to these films, Duncker has been featured in a wide array of anime television series. Her credits include Grandis Granva in Nadia: The Secret of Blue Water, Emeraldas in Harlock Saga, and Yukariko Sanada in My-HiME. She has also had roles in Monster Rancher, Rune Soldier, and Speed Grapher, among others.

Duncker has a notable history with the Sailor Moon franchise, where she voiced multiple characters across different series. Her roles in this universe include Kermesite and Cardians in Sailor Moon R, as well as Taiki Kou, also known as Sailor Star Maker, in Sailor Moon Sailor Stars. This extensive work in the magical girl genre also extends to a role in Ojamajo Doremi, where she voiced Sophies Mutter.

Beyond these major credits, Duncker's career includes parts in other classic anime such as Record of Lodoss War, Noir, and Fushigi Yugi. Her work demonstrates a longstanding and significant involvement in bringing Japanese animation to German-speaking audiences.