Gianluca Musiu is an Italian actor and voice actor born in Rome on October 11, 1972. He is recognized for his extensive work in dubbing foreign films, television series, and animated productions for the Italian-language market.

Musiu pursued formal training in performance, earning a diploma in acting from the Accademia Permis de Conduire and a specialization in ancient dramaturgy from the Teatro del Sogno in Rome. His education also included attending the European School for Actors at the Teatro di Pisa. His foundation in classical theater is substantial, with stage credits that encompass roles such as Cassio in William Shakespeare's Othello, Cleante in Molière's The Imaginary Invalid, and Achille in an adaptation of Homer's Iliad. He has performed with numerous Italian theater companies, including the Compagnia Lavia, the Fabbrica dell'Attore, and the Teatro Mercadante in Naples.

As a voice actor, Musiu is perhaps best known for providing the Italian voice of actor Daniel Dae Kim in multiple roles. His most iconic collaboration in this regard is portraying Jin-Soo Kwon in the television series Lost, a part for which he voiced both the English dialogue and many of the Korean lines. He also dubbed Daniel Dae Kim's character, Chin Ho Kelly, in the series Hawaii Five-0. In the realm of animation, Musiu has contributed to a wide range of dubbed series. One of his notable anime roles is Hakkaku, a young white-haired demon, in the series InuYasha: The Final Act. His other anime and cartoon voice credits include Reggie in American Dragon: Jake Long, Wendell in Maggie, Jax in Megas XLR, Overall in Transformers, Daugler in South Park, Kenny in L'Invincibile Dendoh, Omur Fang in Mobile Suit Gundam, Giese in Last Exile, and Consuela in Family Guy. Beyond animation, his film dubbing work includes voicing Jun Hee Lee as Jimmy Chong in American Pie Presents: Band Camp and Cheyenne Jackson as Mark Bingham in United 93.

Aside from voice acting, Musiu has appeared in live-action Italian television productions, including episodes of the crime drama R.I.S. - Delitti imperfetti, the series Donna detective, and the satirical show Dov'è Mario? created by Corrado Guzzanti. He is also a musician and writer, having authored a comedy titled Zitto (Effetti retroattivi di sincerità mal gestita). Regarding recurring professional collaborations in the voice acting industry, no specific, consistent partnerships with particular directors or fellow actors are documented in the available information, and notable awards or formal distinctions for his voice work are not recorded.