Guillermo Castano Ramirez was born in 1938 in Mexico City to an artistic family; his father, Guillermo Castano Alvardo, was an award-winning sculptor. Castano received his formal training at the Academia de San Carlos and then taught at the Universidad Iberoamericana in Mexico City.

Known for his sculptures, Castano uses the “lost wax” process and creates his own patinas in his studio in La Presa, Mexico. His sculptures have won numerous awards, including Second Prize in the Biennial of Latin American Sculpture in Washington D.C., Frankhoma Award of Sculpture, Oklahoma, and first prize, Silver Award of Best Educational. Castano is also a member of the International Sculpture Center, serves on the board of directors of Artist & Sculpture Bronzes Inc. in Los Angeles California, and is the artistic director of "Bronces Artisticos" in Tijuana, Mexico.