Madeleine Morris is an American voice actor and ADR script writer known for her extensive work in English dubs of anime series. Since entering the voice acting industry in the mid-2010s, she has portrayed a wide variety of characters, demonstrating considerable range across different genres and age groups. Her work is frequently associated with Funimation and Crunchyroll productions.

Morris's career includes a significant number of leading roles. She voiced the determined and fitness-loving Hibiki Sakura in How Heavy Are the Dumbbells You Lift?, the eccentric and unpredictable Mona Tsukishiro in My Senpai Is Annoying, and the protagonist Kabane Kusaka in the supernatural series Kemono Jihen. In a notable example of her versatility, she was cast as the young boy Rudeus Greyrat in the first season of Mushoku Tensei: Jobless Reincarnation. Her film work includes a leading role as Yui in the 2022 movie The House of the Lost on the Cape.

Beyond lead performances, Morris has brought to life a broad spectrum of supporting characters. Her filmography includes the role of Sophie Gainsbourg in Double Decker! Doug & Kirill, Richemont in Ulysses: Jeanne d'Arc and the Alchemist Knight, Kei Takada in Stars Align, and Lyn Hughes in Wise Man's Grandchild. She has also voiced characters in long-running and popular series such as Yui Kodai in My Hero Academia and Miko Iino in the Kaguya-sama: Love is War franchise. Her work in fantasy and adventure anime includes roles like Shia in The Dungeon of Black Company, Erin in Plunderer, Fav in Magical Girl Raising Project, and Inca Kasugatani in Fire Force. She has also taken on dual roles, voicing both Christina and Flora Beltrum in Seirei Gensouki - Spirit Chronicles.

In addition to her on-screen performances, Madeleine Morris is also active behind the scenes as an ADR (Automated Dialogue Replacement) script writer and adapter. She has adapted scripts for series such as Assault Lily Bouquet, Girlfriend, Girlfriend, and Heavenly Delusion. Her work as an adapter continued with the 2025 English dub of the ice-skating anime Medalist. This combination of performance and adaptation work highlights her comprehensive contribution to the localization of anime for English-speaking audiences.