He was noted as a goalkeeper for making seemingly impossible saves. He was said[by whom?] to have unbelievable good luck – the ball often hit the post when he played in goal. Due to his good luck, his opponents' supporters called him "Leiteria" (lucky man) and Fluminense supporters called him "Saint Castilho".
He was daltonic and he believed he was favored because he saw yellow balls as if they were red, though he had trouble at night with white balls.
He is said[by whom?] to be an example of stoicism. Once when he injured his finger for the fifth time, and the doctor told him it would require a two-month treatment, he decided to partially amputate it. Two weeks after the operation he was already back playing for Fluminense.
During his career he appeared in 696 games for Fluminense, a club record. In Fluminense he conceded 777 goals and played 255 games without conceding any goal and it was the best result in Fluminense history..
After his retirement from playing sport, he coached many teams from Brazil.
He died by committing suicide on February 2, 1987.