Geraldo Barreto began his career in Araraquara, his hometown, acting in theater plays. Her voice caught the attention of local radio stations and soon
came the invitation to work as an announcer.
He became a radio professional, playing for the most important radio stations in Brazil, in addition to TVs Record, Cultura and Globo.
In addition to being an actor and announcer, he was also a singer and voice actor.
In Knights of the Zodiac he voiced “Guilty”, the “Knight of the Devil”, and “Phoenix Ikki”.