Isabelle Cunha is a Brazilian voice actress known for her work in dubbing anime and live-action series into Portuguese. She began her career at a young age, with early credits including the role of Janet in the film The Conjuring 2 and the voice of Eleven in the Netflix series Stranger Things, which brought her wider recognition. Her filmography demonstrates a focus on animation, particularly anime, where she has voiced a variety of characters.

Cunha has built an extensive list of credits in anime, contributing to numerous popular series. Her roles include Kurome in Akame ga KILL!, Georgie Saikawa in Miss Kobayashi's Dragon Maid, Mikuri Cairo in 86, and Rekka in Black Clover. She also voiced Gerheade in both The Seven Deadly Sins: Revival of The Commandments and the film The Seven Deadly Sins: Cursed By Light, and provided voices for the series Food Wars! Shokugeki no Soma and Komi Can't Communicate.

In addition to these, she has been cast in several prominent anime featured in streaming service dubs. She voices Reona Kisaragi in the series Full Dive, Flatorte in I've Been Killing Slimes for 300 Years and Maxed Out My Level, and Carmilla in the second season of Re:ZERO -Starting Life in Another World-. Her work in science fiction anime includes the role of Mina Misasa in the Netflix series The Orbital Children. She also voiced Dia Vicorne in The World's Finest Assassin Is Reincarnated as an Aristocrat and has a credit as Lélia in Pokémon Sun & Moon. Her work in the Pokémon franchise also includes voicing Vera, one of the main traveling companions, in the film Pokémon the Movie: I Choose You!.