Martina Felli is an Italian voice actress known for her extensive work in dubbing anime, video games, and live-action films and television series for the Italian market. Her career is characterized by a wide range of iconic characters, from troubled teenagers to powerful heroes and quirky comedic roles.

Felli's passion for voice acting began in her youth, where she practiced autodidactically by dubbing anime episodes with friends. She later formalized her training by studying phonetics, diction, acting, and dubbing for two years at the Centro Teatro Attivo in Milan. Since late 2010, she has worked professionally as a voice actress in major Italian dubbing centers including Milan, Turin, and Rome.

Felli is prominently featured as the Italian voice for numerous characters in popular anime series. In the comedy series Komi Can't Communicate, she voices the androgynous and energetic Najimi Osana. She brings to life the villainous Himiko Toga in My Hero Academia. Her repertoire also includes the titular character Frieren in Frieren: Beyond Journey's End and the powerful Power in Chainsaw Man. In the fantasy world of Is It Wrong to Try to Pick Up Girls in a Dungeon?, she voices the supporter Asfi Al Andromeda. Other notable anime roles include Illyasviel von Einzbern in the Fate/stay night film series, Pieck Finger in Attack on Titan, and Kokomi Teruhashi in The Disastrous Life of Saiki K.: Reawakened. She also voiced Ritsu in the Assassination Classroom franchise and Akane Aioi in Her Blue Sky. For the film Naruto Shippuden: The Lost Tower, she dubbed the character Sara.

Beyond anime, Felli has a prolific career in video game voice acting, a field in which she has received significant recognition. She is the Italian voice of the protagonist Aloy in the acclaimed games Horizon Zero Dawn and Horizon Forbidden West. She also voices the heroine Zelda in The Legend of Zelda: Breath of the Wild and The Legend of Zelda: Tears of the Kingdom. Her other major video game roles include the female version of V in Cyberpunk 2077, D.Va in Overwatch, and Irelia in League of Legends. In 2017, she won the award for Best Voice Actor in a Video Game at the Festival del doppiaggio Voci nell'Ombra for her performance in Horizon Zero Dawn.

In live-action dubbing, Felli is the regular Italian voice for several actresses. She is particularly known for dubbing Katherine Langford as Hannah Baker in the Netflix series 13 Reasons Why and Ashley Rickards in Awkward. She also frequently dubs Jessica Henwick in films like The Matrix Resurrections, The Gray Man, and Glass Onion: A Knives Out Mystery, as well as Daisy Edgar-Jones in Where the Crawdads Sing and Eiza González in Ambulance.