Sérgio David Cordeiro Calvinho is a Portuguese actor, voice actor, dubbing director, and narrator, born in Lisbon on June 27, 1979. He pursued his early passion for acting by earning a degree in Theater from the Escola Superior de Teatro e Cinema (ESTC). His professional life began in theater, a path he followed for six years, during which he also started taking on voice-over work, with dubbing quickly becoming a parallel and then primary focus of his career.

Over the years, Calvinho has built an extensive career lending his voice to a wide array of characters in animation, films, and television series for the Portuguese market. He is widely recognized for his work in anime, with notable roles including Ray Kon in the Beyblade franchise, Gray Fullbuster, Makarov Dreyar, and Jellal Fernandes in Fairy Tail, Suneo Honekawa in various Doraemon films and series, and Jude Sharp, Kevin Dragonfly, and Ray Dark in Inazuma Eleven. His other prominent voice work includes Matt in Matt Hatter Chronicles, Kurogane in Tsubasa: As Crónicas de Sakura, and Jaden Yuki in Yu-Gi-Oh! GX. Beyond anime, he is known for voicing characters such as Discord, Shining Armor, and Big Mac in My Little Pony: A Amizade É Mágica, Duncan and various other characters in the A Ilha dos Desafios series, and Kendall Knight in Big Time Rush. He also provided voices for the European Portuguese dubs of Transformers: BotBots characters like Wishy-Waffley and Brock O'Lonely.

His film dubbing work is equally extensive and includes high-profile projects. He voiced Timon in the 2019 version of O Rei Leão, Plankton in the SpongeBob SquarePants films, Cacofonix in several Astérix films, and Flash Sentry in the My Little Pony: Equestria Girls movies. He also took on the role of the Grilo Falante in the 2022 live-action adaptation of Pinóquio.

Calvinho's work is not limited to animation and children's entertainment. He has voiced Nathan Drake from the Uncharted video game saga, a role for which he is well-known, and has contributed to major gaming titles like Death Stranding and The Last of Us: Parte 2 as part of the dubbing direction team. Since 2008, he has also been the official voice of the Syfy channel in Portugal, and he works extensively in documentary narration and advertising.

In addition to his performance work, Sérgio Calvinho has become a prominent dubbing director. This aspect of his career has grown to occupy most of his time, with him directing dubbing projects for clients like PlayStation, RTP, and Netflix. Examples of his directorial work include the second season of the series O Gato da Cartola for RTP and the Netflix series Uma Espécie de Narval, a DreamWorks production for which he also voiced a character. His extensive experience and contributions to the field have made him a central figure in Portuguese dubbing, with his work spanning performance, direction, and voice direction for major international productions.