Bira Castro is the professional name of Ubirajara de Castro, a Brazilian actor and voice actor born in São Paulo, Brazil, on March 24, 1953. He passed away on November 11, 2016, in Los Angeles, California. His career included work in sound departments and as an assistant director, in addition to his on-screen and voice acting roles.

In the context of anime voice acting, Castro is notably recognized for his work in the Brazilian Portuguese dubbing of the 1994 Japanese animated film Street Fighter II: The Animated Movie. For the film's initial cinema release, which was dubbed in Los Angeles, he provided the voice for three distinct characters: the lead character Ken Masters, the antagonist Vega (known as M. Bison in some territories), and the fighter Fei Long. This film remains a key credit in his voice acting filmography. Beyond this specific anime role, his broader voice work includes providing additional voices for the 2011 animated film Rio, where he was again credited as Bira Castro.