Gonzalo Rei Chao was a Spanish actor and voice actor, born in 1945 in Galicia, Spain, who passed away on February 9, 2026, at the age of 80. He is most widely recognized for providing the Galician-language voice for the character Master Roshi, known as Mestre Mutenroi, in several installments of the Dragon Ball anime series. According to reports, he voiced this character in Dragon Ball Z Kai, as well as the films Dragon Ball Z: Battle of Gods and Dragon Ball Z: Resurrection F.

His career in the performing arts began in 1986, following his training at the Escola de Artes Escénicas da Estrada under the tutelage of prominent dramatist Roberto Vidal Bolaño. While Rei Chao worked extensively across television, film, and theater, his work in dubbing was a significant part of his professional life. Beyond Dragon Ball, his voice acting credits include roles for the Galician dubs of other notable projects. He lent his voice to the character of The Master in the classic educational anime Once Upon a Time... Man and portrayed Don Gregorio in the Galician version of the film Butterfly's Tongue. He also worked as a narrator on the project Os mortos van á présa.

In addition to his voice work for anime and film, Rei Chao was a familiar face on Galician television. He is remembered for his long-running role as Don Crisanto, a village priest, on the popular TVG series Padre Casares, a character he played from 2008 to 2015. His other television credits include appearances in series such as Mareas Vivas, Terra de Miranda, Libro de familia, and Valderrei. His film work includes performances in Pradolongo, A vida que che espera, and A praia dos afogados.

Following his passing, his work was remembered by professional organizations including the Asociación de Actores e Actrices de Galicia and the Academia Galega do Audiovisual, who highlighted his role as a fundamental interpreter for Galician culture and his impact on several generations of viewers who knew him as the voice of Mestre Mutenroi.