Marie Nonnenmacher is a French voice actress born on September 12, 1976. She is prominently known for her extensive work in the dubbing of anime and animated series into French.

Nonnenmacher has lent her voice to a wide array of characters across numerous popular anime franchises. She is the regular French voice for Lucy Heartfilia in the Fairy Tail series, including its films Fairy Tail: The Priestess of the Phoenix and Fairy Tail: Dragon Cry. In the long-running series One Piece, she has voiced Nico Robin during a replacement period and provided the voice for Rebecca. Other significant anime roles include Sasha Braus in Attack on Titan, Emma in The Promised Neverland, and Shoko Ieiri in Jujutsu Kaisen. She also voices multiple characters in major series such as Momo Yaoyorozu and Minoru Mineta in My Hero Academia, Erina Nakiri in Food Wars!, Enri Emmot in Overlord, Riko Aida in Kuroko's Basketball, Komugi in Hunter x Hunter, and Nui Harime in Kill la Kill. More recent roles include Frieren in Frieren: Beyond Journey's End, Göll in Record of Ragnarok, and Kaie Taniya in 86 Eighty-Six.

Beyond anime, Nonnenmacher is widely recognized as the voice of Tikki, as well as Sabrina Raincomprix and other characters, in the animated series Miraculous: Tales of Ladybug & Cat Noir and its related films and specials. Her work also extends to Western animation, where she has voiced characters like Princess Allura in Voltron: Legendary Defender, Cheese in Boy Girl Dog Cat Mouse Cheese, and Lyna in LoliRock.

In addition to animation, Nonnenmacher is an active voice actress in live-action dubbing and video games. She is the regular French dubbing voice for actresses Laura Slade Wiggins and Felicia Day. Her extensive video game credits include Ashley Graham in the 2023 remake of Resident Evil 4, Sarah in The Last of Us, Jinx, Lux, and Annie in League of Legends, Failsafe in Destiny 2, the Assistant in Monster Hunter World, and Kuro in Sekiro: Shadows Die Twice.

With a career spanning numerous major franchises and hundreds of roles, Marie Nonnenmacher has established herself as a prominent and versatile figure in French voice acting.