Maynardo Zavala was a highly respected Mexican actor and a pioneering figure in the world of Spanish dubbing, renowned for his deep and resonant voice. Born José Maynardo Zavala Bustamante on January 21, 1939, in San Luis Potosí, México, he initially studied painting, set design, and dramatic art before an unexpected opportunity to substitute for an absent actor launched his enduring career on stage, radio, and eventually in dubbing. He became a foundational voice in Mexican dubbing starting in the 1960s, working on classic films and later directing and starring in numerous projects across film, television, and animation.

In the realm of anime, Zavala is perhaps most fondly remembered for his portrayal of the stern but kind-hearted street performer Sr. Vitalis in the classic 1977 series Nobody's Boy Remi. His work on this beloved series was significant not only as a voice actor but also as the dubbing director for the project, a dual role that cemented the show's impact on Latin American audiences. His extensive voice work in anime also included iconic roles such as Long John Silver and Billy Bones in Treasure Island, Dr. Hulefante in Astro Boy, Commander Gandal and Dr. Genzo Umon in UFO Robo Grendizer, as well as contributions to series like Cowboy Bebop, Naruto, and Magical Angel Creamy Mami.

Beyond anime, Zavala's filmography was vast, lending his distinguished voice to a wide array of characters in live-action and animated productions. He was the voice of King Harold in the Shrek films, Henry J. Waternoose in Monsters, Inc., Treebeard in The Lord of the Rings, and Alastor "Mad-Eye" Moody in the Harry Potter series. He was also known for dubbing iconic actors such as James Earl Jones, Bill Cosby, and Bud Spencer across numerous films and television series. His versatility extended to television, where he voiced characters like the titular Captain Caveman and held recurring dubbing roles in popular series.

Throughout his career, Zavala was also an accomplished dubbing director, leading projects at studios like Sonomex, where he directed the Spanish-language versions for ER, The Demolition Man, and the 1987 version of The Untouchables, among many others. He was a mentor and a respected figure in the dubbing community, known for his professionalism and passion for the craft. His legacy continues through his son, Ulises Maynardo Zavala, who is also a prominent voice actor and director. Maynardo Zavala passed away on August 11, 2008, with his final work being a dedication in the Latin Spanish dub of the video game Fable II.