Oscar Javier Cuesta is a Colombian voice actor and dubbing artist, recognized for his extensive work in Spanish-language dubbing for animation, anime, and live-action film and television. Based in Bogotá, Colombia, he has built a career lending his voice to a wide array of characters across different genres and mediums.

Cuesta has a notable portfolio in the realm of anime, where he is known for portraying significant characters. One of his most recognized roles is Aoshi Shinomori in the anime series Samurai X, also known as Rurouni Kenshin. He also took on the role of Jinpuu in the same series. In line with the user's example, he is the voice of Dino Brachio in the series Dinozaurs: The Series. His other anime credits include Terra Dag and Emperor Diga in Tai Chi Chasers, Beag and Título in Tenkai Knights, Alexander Kurenai in Judo Boy, and Vega in the animated film Street Fighter II: The Animated Movie.

Beyond anime, his work spans a wide variety of animated series and films. In animation, he has voiced characters such as Chico Migraña in the series of the same name, Elmo in Eek el gato, Paco in Santo Buguito, and Dark Star in Liga de mutantes. Cuesta is also known for dubbing numerous live-action films and television series, frequently providing the Spanish voice for prominent Hollywood actors including Jackie Chan, Jean-Claude Van Damme, Billy Zane, Bruce Willis, Nicolas Cage, Kevin Spacey, and Stanley Tucci, among many others.