Alfonso Grau is a Colombian actor known for his work in dubbing, primarily for Spanish-language versions of films and television series. His career has been extensive, lending his voice to a wide array of characters in both live-action and animated productions for the Latin American market. Grau's dubbing filmography is substantial and varied. In live-action cinema, he has frequently dubbed the voices of prominent Hollywood actors such as Ethan Hawke, Ed Harris, and Martin Sheen. Some of his notable film credits include voicing characters in productions like Dios no está muerto, Sharknado 2: El segundo, Locked Down, and La boda del monzón. His television work includes contributing to series such as Leverage, COPS, and Flashpoint. Beyond live-action, Grau has been active in voice work for animated series, with roles in shows like Super Duper Sumos, Cubix, Oswald, and Little Robots. Within the realm of anime and Japanese animation, Alfonso Grau has provided voices for several characters. His roles include Franklin, Hanzo, and Zeno Zoldyck in various adaptations of Hunter x Hunter. He is also credited as Dan You in Thunder Jet and as Kotaro Azuma, also known as Dr. Sherman, in Casshan (titled Superboy Galáctico in some regions).