Marcos Miranda was a Brazilian actor and voice actor who built a prolific career spanning several decades, becoming a well-recognized voice in Portuguese dubbings for film and television. He was born Vaine Geisler Dutra on December 20, 1936, in Bagé, Rio Grande do Sul, Brazil. Miranda worked extensively in dubbing studios such as AIC, BKS, and Herbert Richers, lending his voice to a vast array of characters until his death on October 7, 1988.

Miranda's voice is featured prominently in several anime series and films that were broadcast in Brazil. He voiced the character Draco in the anime series Voltes V. In the Star Blazers universe, he took on the role of Conroy in the series Star Blazers: The Bolar Wars. His work in anime also extended to feature films, including the movie From the Apennines to the Andes, where he voiced the Diretor do Orfanato, and the film adaptation of Marco, where he participated in the Portuguese version.

Beyond these specific credits, Miranda's voice was heard in many other animated productions. He was part of the Brazilian casts for numerous popular American and Japanese animated series. His extensive filmography includes voicing characters in enduring franchises such as Transformers, where he was the first voice for Grimlock and Shockwave, and also voiced Galvatron, Swoop, Swindle, and Bruticus. He also contributed to series like Thundercats, SilverHawks, and The Adventures of the Galaxy Rangers, among others.

In addition to his animation work, Marcos Miranda was a highly active dubbing artist for live-action films and television series. He was the regular Portuguese voice for prominent actors like John Wayne, Clint Eastwood, and William Shatner. His extensive list of live-action dubbing credits includes roles in major films such as...E o Vento Levou (Gone with the Wind), Rastros de Ódio (The Searchers), the first three Star Trek films, and the classic dubs of The Godfather Part II and Karatê Kid - A Hora da Verdade (The Karate Kid). Miranda's significant body of work across both animation and live-action made him a lasting and familiar presence in Brazilian voice acting.