Actor best known for portraying the role of Oberyn Martell in season 4 of Game of Thrones and as Javier Pena in the Netflix series Narcos. In 2019, he began starring in the Star Wars series The Mandalorian.
He was raised in San Antonio, Texas and studied acting at NYU's Tisch School of the Arts
Shortly after he was born in Santiago, Chile, his family was granted political asylum in Denmark. His brother, Lucas Balmaceda, is a fellow actor.