Newton Martins was a Brazilian actor and voice actor, recognized for his extensive work in television, film, and dubbing. He passed away on May 29, 2011, at the age of 75 due to multiple organ failure, after having battled Parkinson's disease for six years. His career in dubbing included a variety of roles in animated series and live-action productions.

In the realm of anime and animation, Martins is known for providing the Brazilian Portuguese voice for several characters. He voiced the character Exedore in the Brazilian version of the anime series The Super Dimension Fortress Macross, a role also credited under its American adaptation, Robotech. His other notable work in dubbing includes Mitsuo Yamaki in Digimon Tamers and providing a second voice for the character Escamoso in the ThunderCats animated series. His portfolio also extended to live-action dubbing, such as voicing characters in series like Lei e Ordem (Law & Order) and The Flash.

Beyond voice acting, Newton Martins had a prolific career as an on-screen actor. His last role was in the 2006 miniseries JK, where he played Olegário Maciel. Over the decades, he appeared in numerous Brazilian telenovelas, including Escrava Isaura, Selva de Pedra, Sonho Meu, and Despedida de Solteiro. He also acted in films during the 1970s, such as Obsessão and Folga.