Javier Viñas is a seasoned Spanish voice actor and dubbing director with a lengthy career spanning several decades. Based in Barcelona, he began his professional journey as a theater, film, and television actor in 1979 and expanded into film dubbing in 1983. He is also known to work in Madrid. His voice is characterized as deep, and he has noted his own versatility in imitating accents and modulating his voice from very high to very low pitches.

Viñas has extensive experience dubbing animated content for major studios such as Warner Bros., Disney, and Cartoon Network. He is credited with providing the Spanish voice for the character Prince Ahmed in the 1993 Disney animated film Aladdin. In the realm of anime, he is recognized for his role as the villainous Jagi, the third of the four Hokuto brothers, in the classic series Fist of the North Star. He also voiced the iconic, megalomaniacal monkey Mojo Jojo in the anime adaptation Demashitaa! Powerpuff Girls Z.

Beyond his work in animation, Viñas is a prolific dubbing actor for live-action film and television. His credits from the early to mid-1990s alone include dubbing actors in major films such as The Pelican Brief, Schindler's List, Mrs. Doubtfire, Sister Act 2: Back in the Habit, Groundhog Day, and A Few Good Men. He has also worked on series like Murder, She Wrote and Star Trek: The Next Generation. In addition to his performance work, he is also active as an adapter and director of dubbing. His clients have included major platforms and studios like Netflix, Disney, Warner Bros., HBO, and Amazon.