Warren Oates was an American actor who began his acting career in 1957, starring in a live New York production of the television series "Studio One." He moved to Los Angeles and appeared in numerous television western series. Oates made four appearances in THE RIFLEMAN, portraying Andrew Shelton in "The Marshal" (episode 4), Jud Malackie in "Bloodlines" (episode 42), Santos in "The Prodigal" (episode 71), Marty Ryan in "Miss Milly" (episode 84), Will Breen in "Day of Reckoning" (episode 139). He met Sam Peckinpah working on THE RIFLEMAN, which began a collaborative relationship on later film projects. He was a prolific actor best-known for his roles in the Peckinpah classics, "The Wild Bunch" (1969) and "Bring Me the Head of Alfredo Garcia" (1974). His most critically acclaimed role was playing GTO in the 1971 Monte Hellman cult classic "Two-Lane Blacktop." Oates passed away in 1983 and a decade later, in 1993, Tom Thurman produced a documentary tribute film honoring his career, "Warren Oates: Across the Border."