Maddalena Vadacca is an Italian voice actor with a career spanning several decades, known for her work in dubbing international films, television series, and animated shows for the Italian audience. She developed her craft through studies at the Teatro Arsenale and the Centro Teatro Attivo in Milan, which laid the foundation for her extensive career in voice acting.

Her voice can be heard across a wide spectrum of anime and animated series. She is the Italian voice of Jolyne Cujoh, the protagonist of the series JoJo's Bizarre Adventure: Stone Ocean. In the series Huckleberry Finn Monogatari, she voiced multiple characters, including Julie Watson, Mrs. Phelphs, and Ondina. Her repertoire also includes the role of Milady de Winter in the World Fairy Tale Series, Kyoko Asechi in Pretty Rhythm Aurora Dream, and the Erinyes Tisifone in the OAVs Saint Seiya: The Hades Chapter - Inferno and Saint Seiya: The Hades Chapter - Elysion. She also voiced Rui in Daimaju Gekito Hagane no Oni and Chiko in Parasite Dolls. For younger audiences, she is known as the voice of Barbamamma in the modern reboots of the Barbapapa series, including Barbapapa Around the World. Her other notable roles include Dorothea in Emma: A Victorian Romance and Yayoi in Space Symphony Maetel ~Ginga Tetsudō 999 Gaiden~.

Beyond the specific roles listed, her career is marked by significant versatility. She has voiced iconic characters such as Sailor Uranus (Haruka Ten'oh) in the various iterations of Sailor Moon, Maria Ross in both Fullmetal Alchemist and Fullmetal Alchemist: Brotherhood, and Mei Terumi in Naruto Shippūden. Her film work includes roles in the movies of Puella Magi Madoka Magica as Junko Kaname and in Detective Conan: The Raven Chaser. She also contributed her voice to the Italian versions of live-action films like Shinobi: Heart Under Blade. In addition to her performance work, she has worked as a scriptwriter for animated series such as Ashita e Free Kick and Trapp Ikka Monogatari.

In addition to her performance work, Vadacca has lent her voice to numerous advertising campaigns for major brands and shares her expertise as a teacher of diction and dubbing at Accademia09 in Milan.