Maddalena Vadacca is an Italian voice actor known for her extensive work in dubbing anime, films, and television series for the Italian market. Her career spans several decades and is marked by a high degree of versatility across numerous genres and character types. She developed her foundational skills through studies at the Teatro Arsenale and the Centro Teatro Attivo in Milan.

Vadacca’s filmography includes a wide range of prominent anime roles. She is known as the Italian voice of Jolyne Cujoh, the protagonist of JoJo's Bizarre Adventure: Stone Ocean. She has voiced Haruka Ten'oh, also known as Sailor Uranus, in various iterations of Sailor Moon. Her other significant roles include Maria Ross in Fullmetal Alchemist and Fullmetal Alchemist: Brotherhood, Mei Terumi, the Fifth Mizukage, in Naruto Shippuden, and Junko Kaname in the Puella Magi Madoka Magica film series. In one of her earlier roles, she provided the voice of the narrator in the second dubbing of the series The Adventures of Hutch the Honeybee. She also voiced Kyoko Asechi in Pretty Rhythm Aurora Dream, the Erinyes Tisifone in the Saint Seiya: The Hades Chapter OAVs, Dorothea in Emma: A Victorian Romance, and Barbamamma in reboots of the Barbapapa series. Her extensive resume further includes parts in series such as Overlord, My Hero Academia, Blue Dragon, Devil May Cry, and the Italian versions of the Pokémon franchise.

In addition to animation, she has dubbed live-action performances for actresses including Ashley Judd, Jessica Lange, and Portia de Rossi. Beyond her work as a performer, Vadacca has also worked as a scriptwriter for animated series such as Ashita e Free Kick and Trapp Ikka Monogatari. She is also an educator, sharing her expertise as a teacher of diction and dubbing at Accademia09 in Milan.