Guillermo Coria is a Mexican actor and singer widely recognized for his extensive work in Latin American dubbing, particularly in anime, animated series, and live-action films. In addition to his voice acting career, he is also a singer, performing as part of a blues duo with fellow voice actor Eduardo Tejedo.

Coria has built a substantial career voicing characters in numerous anime series. Among his most prominent roles in this genre is Lancelot Douglas in The Sacred Blacksmith. His filmography also includes voicing Dr. Gero in Dragon Ball Z Kai, Takeshi Ooi in Death Note, and Ikkakumon and Zudomon in Digimon Adventure. He has voiced characters in other major franchises such as Charon in Pokémon Diamond and Pearl, Outlook III in One Piece, and Golgius in The Seven Deadly Sins. His work extends to the Ghost in the Shell franchise, where he provided the voice for Daisuke Aramaki in several productions, including Ghost in the Shell: Stand Alone Complex - The Laughing Man. He is also known for his roles as Ching Tao in the 2021 Shaman King series and as Commander Beef in MegaMan NT Warrior.

Beyond anime, Coria's voice is familiar to audiences from a wide range of other works. He is well-known for his portrayal of Panthro in Thundercats, King Robert Baratheon in Game of Thrones, and Professor Charles Xavier in various installments of the Marvel Cinematic Universe. His career is marked by recurring collaborations and connections within the dubbing industry. He is the uncle of voice actor Armando Coria and shares a vocal similarity with him, which has occasionally led to Guillermo taking over roles his nephew previously voiced. A notable example of this is his role as Dr. Gero in Dragon Ball Z Kai, which he inherited from fellow actor José Luis Castañeda.