Christin Marquitan is a German actress, singer, and voice actor whose career spans theater, television, and extensive work in dubbing foreign-language films and series. She began her professional training at a young age, receiving her first record contract at 15. Her studies included voice lessons at the Hamburg State Opera, acting instruction from Elisabeth Bergner in London, and musical training at the Bühnenstudio Hedi Höpfner in Hamburg. She completed her state acting examination in Hamburg at 19 and furthered her vocal studies under opera singer Brigitte Fassbaender. Marquitan has performed on prestigious stages including the Vienna Burgtheater and the Stuttgart State Theatre, and has appeared in German television series such as Derrick and Tatort.

In the realm of anime and animation dubbing for the German-language market, Christin Marquitan has built a substantial portfolio of credits. She is perhaps best known as the long-standing German voice of the character Major Motoko Kusanagi, the protagonist of the Ghost in the Shell franchise. Her work in this role spans numerous installments, including the Ghost in the Shell: Stand Alone Complex television series, the films Ghost in the Shell 2: Innocence and Ghost in the Shell: The New Movie, the Ghost in the Shell: Arise OAVs, and the Netflix series Ghost in the Shell: SAC_2045. This consistent casting demonstrates a significant long-term association with a major anime franchise.

Other prominent anime roles include Merle in The Vision of Escaflowne and Escaflowne: The Movie, Eda in Black Lagoon and its sequel, and K.K. in Blood Blockade Battlefront. She voices Nike in Appleseed: Ex Machina and Touko Aozaki in The Garden of Sinners film series. In Sword Gai: The Animation, she plays Yasuko Tanaka, and she provides the voice of Tsukiumi in Sekirei and Sekirei: Pure Engagement. Her work includes Rumiko Takahashi Anthology, where she is the voice of Frau Asakawa, and Yukikaze, where she voices Edith Foss. She also plays the role of Cathy in Angels of Death. Beyond these, her extensive list of credits encompasses roles in popular series such as Detektiv Conan (Case Closed), Digimon, Pretty Cure, and Golden Kamuy.

Beyond her anime work, Marquitan is a highly sought-after voice actor in the German dubbing industry. She is known as the standard German voice for numerous Hollywood actresses, including Salma Hayek, Juliette Binoche, Monica Bellucci, Famke Janssen, and Sandra Oh. In recognition of her outstanding contributions to the craft of voice acting, she was honored with the German Voice Acting Award (Die Stimme) at the 2019 German Acting Awards.