Ruben Quezada is a Mexican voice actor known for his work in anime dubbing, bringing to life a wide range of characters in Spanish for Latin American audiences. His career encompasses prominent roles in major series, often collaborating with specific dubbing studios and directors in Mexico.

Quezada has portrayed several leading and supporting characters in popular anime series. He is the voice of the protagonist Rudeus Greyrat in the acclaimed isekai series Mushoku Tensei: Jobless Reincarnation. In this production, he shares the role with Elliot Leguizamo, who voices Rudeus's previous life. Another notable lead role is Letty, the timid young dragon protagonist of the fantasy comedy Dragon Goes House-Hunting. His filmography also includes the character Ricky in the mysterious series Shadows House, Gonze in Banished From The Heroes' Party, Mark Bean in Wise Man's Grandchild, and Tooru Mutsuki in Tokyo Ghoul:re. He also took on the role of Gakuto Mukahi in The Prince of Tennis II Hyotei vs Rikkai Game of Future, a character originally voiced by different actors in previous iterations of the franchise.

Beyond these key roles, Quezada has contributed his voice to a wide array of other anime, demonstrating his versatility. His credits include characters in series such as Overlord, Assassination Classroom, Noragami, Soul Eater, Seraph of the End, Deca-Dence, Fuuto Pi, and the films Akira and Demon Slayer: To the Swordsmith Village, often in supporting or additional voice roles.

Much of Quezada's dubbing work is performed in Mexico, with a significant portion being recorded at studios in Cuernavaca. For instance, the Latin Spanish dubs for both Mushoku Tensei and Shadows House were produced there. He has frequently collaborated with voice actress and director Denisse Leguizamo, who has directed dubs in which Quezada appears, such as Shadows House and Mushoku Tensei, and has also worked alongside her as a fellow cast member. This points to a recurring professional relationship within the industry. Beyond his on-screen work, he is also known in the dubbing community under the online handle "Rubecai" and has participated in industry podcasts to discuss his career and the craft of dubbing.