Dario De Rosa is an Italian actor and voice actor born in Naples on 31 January 1983, whose professional journey is rooted in an extensive and formal performing arts education. His training encompassed body mime, acting techniques including the Stanislavskij-Strasberg method, tap-dancing, and singing, the latter of which he pursued to a diploma level at the Santa Cecilia Conservatory in Rome in 2013. He also refined his diction and phonetics under established voice actors Alberto Angrisano and Mirta Pepe.

Before establishing himself in voice acting, De Rosa built a substantial career in theatre, participating in around nine hundred performances between 2001 and 2008, including the award-winning musical C'era una volta... Scugnizzi. He also appeared in film and television productions, collaborating with directors such as Gianni Amelio and taking roles in various Italian television series.

Relocating to Rome in 2008, De Rosa transitioned to focus on voice acting and work as a singer-voice actor. His voice work includes dubbing the role of the young Voldemort in the Italian version of Harry Potter and the Half-Blood Prince. While his profile highlights extensive vocal contributions to animation and children's series, his work in the anime industry is primarily connected to singing for Italian adaptations. He has performed songs for the Italian versions of various animated series, including Inazuma Eleven, as well as for shows like Masha and the Bear and Dinosaur Train. In addition to his performance work, Dario De Rosa is also active as a teacher, instructing courses in diction and acting.