Mário Vilela was a Brazilian actor and voice actor, born Mário Alves Vilela on August 12, 1923, in São Paulo. He began his career as an actor before entering the field of dubbing around 1967 at the AIC studio (Arte Industrial Cinematográfica) in São Paulo. Over the following decades, he worked at numerous dubbing studios in the city, including BKS, Álamo, Elenco, Maga, S&C, Odil Fono Brasil, Windstar, Gota Mágica, Marshmellow, Mastersound, Megassom, DPN, and Studio Gábia.

Vilela contributed his voice to a wide array of anime and animated series. As noted in the query, he voiced the character Cyborg 007 in the 1968 anime series Cyborg. Isaac Gilmore in the film Cyborg 009 Contra o Monstro do Mar. He also performed the role of Formiga Velha in the series Manga Aesop Monogatari. His other notable anime roles include Spika in the first dubbing of Os Cavaleiros do Zodíaco (Saint Seiya), Blass in Fly o Pequeno Guerreiro, Hardman in Megaman, Hunk in Voltron, and Rei Uther Pendragon in Rei Arthur (Entaku no Kishi Monogatari: Moero Arthur). He also participated in dubs for Dragon Ball, Dragon Ball Z, and Vampire Hunter D.

Beyond anime, Vilela had an extensive career dubbing live-action series and films. He was particularly renowned as the primary Portuguese voice of Mexican actor Édgar Vivar, lending his voice to the beloved characters Seu Barriga (Señor Barriga) and Nhonho (Ñoño) in the popular sitcom Chaves (El Chavo del Ocho), as well as other roles in Chapolin and Chespirito. He also provided voices for characters in tokusatsu series such as Esquadrão Relâmpago Changeman, Spectreman, Patrine, and Nacional Kid. His work in animation extended to characters like Ed Cabeção in A Vida Moderna de Rocko, Krumm in Aaahh!!! Monstros, Lenny in Kissyfur, and Waldorf in The Muppet Show.

A significant moment in his career came in 2003 when he personally met the actor Édgar Vivar on a Brazilian television program, an encounter he found deeply moving. Mário Vilela passed away on December 1, 2005, in São Paulo due to heart failure, following a long period of diabetes.