Cristal Barreyro is a Spanish voice actor known for their work in anime dubbing, providing voices for Spanish-language versions of popular series and films. Their career is primarily documented through credits in Castilian Spanish dubs for various animated productions.

Barreyro has been involved in dubbing for several notable anime titles. In the series Komi Can't Communicate, they provided the voice for the character Nokoko Inaka in the Castilian Spanish dub. They also voiced the character Mei Kamino in the 2021 anime series Godzilla Singular Point for the same Spanish market. Additionally, Barreyro was the voice of Ran Mouri in the Catalan language dub of the film Detective Conan: The Scarlet Bullet. These roles demonstrate Barreyro's engagement with major anime franchises, contributing to their accessibility for Spanish-speaking audiences.