Julio César Cedillo is an American actor who portrayed Welles on AMC's The Walking Dead. He is best known for the title role in the 2005 film The Three Burials of Melquiades Estrada. Cedillo grew up in Fort Worth, Texas. In 1988 he graduated from Dunbar High School in Fort Worth. He appeared in several television productions in the 1990s including Wishbone's Dog Days of the West, then made his film debut in 2000 in All the Pretty Horses. Other films include The Rookie, Serving Sara, The Life of David Gale The Alamo, and Cowboys & Aliens.