Hamilton Ricardo was a Brazilian voice actor known for his work in dubbing foreign productions into Portuguese, particularly for his extensive contributions to anime and live-action series. He was born on January 11, 1956, in São Paulo, Brazil, and passed away on August 10, 2015, also in São Paulo.

Ricardo's career was primarily focused on dubbing, a field in which he was highly active. He began his dubbing work with the television series CHiPs. Over the years, he became a familiar voice to Brazilian audiences, lending his talents to a wide array of characters in animation and live-action films and television shows.

In the realm of anime, one of his notable roles was that of Albert Heinrich, also known as Cyborg 004, in the 2001 anime series Cyborg 009 The Cyborg Soldier and its subsequent OVA, Cyborg 009: Conclusion GOD'S WAR: Prologue. His work in anime was extensive and included roles in major series. He voiced Freeza in Dragon Ball Z Kai, Raven in Fullmetal Alchemist: Brotherhood, and provided voices for characters in Naruto, Bleach, and Yu Yu Hakusho: Ghost Files. His other anime credits include roles in Samurai Champloo, Trigun, Saint Seiya Omega, and the live-action Rurouni Kenshin films. He also contributed to dubs of animated films such as Princess Mononoke and Metropolis.

Beyond anime, Hamilton Ricardo's voice was heard in a vast range of other productions. He dubbed characters in popular Hollywood films, including David Thewlis's portrayal of Remus Lupin in the Harry Potter series, Warwick Davis in The Chronicles of Narnia: Prince Caspian, and characters in Pixar films like Finding Nemo, Ratatouille, and Cars. On television, he was the Portuguese voice for Tony Shalhoub in Monk, Sam Waterston in Law & Order, and Sean Pertwee in Gotham. He also voiced numerous characters in animation, such as General Skarr in The Grim Adventures of Billy and Mandy, and characters in various DC animated series like Justice League and Batman: The Animated Series. In addition to his dubbing work, Ricardo voiced the puppet dog Paulo Paulada on the popular Brazilian children's television program TV Colosso and made occasional appearances in telenovelas.