Adrián Viador is a Spanish voice actor known for his work in anime and animated series dubbing. He is primarily recognized for providing the Spanish voice for key characters in several long-running and popular franchises.

Viador's most prolific and defining role is that of Shun Kazami in the Bakugan franchise. He voiced the character across multiple series, beginning with Bakugan Battle Brawlers and continuing through its sequels Bakugan Battle Brawlers: New Vestroia, Bakugan Battle Brawlers: Gundalian Invaders, and Bakugan: Mechtanium Surge. This extensive run established him as the consistent Spanish voice for the character over several years and seasons of the show.

In addition to his work on Bakugan, Viador has contributed to the Pokémon franchise. He voiced the character Riot, a ninja thief and antagonist, in the feature film Pokémon the Movie: Diancie and the Cocoon of Destruction. He also provided the voice for the character Virgil in Mewtwo ~Kakusei e no Prologue~, a prologue special related to the sixteenth Pokémon film.

His work in the Bakugan series, in particular, demonstrates a recurring professional relationship with director Jaime Roca, who directed the dubbing for the seasons of the show in which Viador participated. This body of work highlights Viador's presence in Spanish dubbing for action-oriented animated series aimed at younger audiences.