Robert Golden "R.G." Armstrong (born April 7, 1917) is an American actor and playwright. A veteran character actor who appeared in dozens of Westerns over the course of his 40-year career, he may be best remembered for his work with director Sam Peckinpah.
Armstrong was born in Pleasant Grove, Alabama. He came from a family of religious fundamentalists, and his mother wanted him to be a pastor. Armstrong, however, became interested in acting, and while attending the University of North Carolina (along with classmate Andy Griffith), he began acting on stage with the Carolina Playmakers. Upon graduating, he attended the Actors' Studio.
Armstrong quickly launched a career on Broadway. He won considerable acclaim for his role in Cat on a Hot Tin Roof. He also began writing his own plays, which were performed off-Broadway.
Armstrong's first film appearance was in the 1954 movie Garden of Eden. It was television, however, where he first earned a name for himself. He guest-starred in virtually every TV Western produced in the 1950s and 1960s, including: Have Gun - Will Travel, Californians, The Big Valley, The Rifleman, Zane Grey Theater, Wanted: Dead or Alive, The Westerner, Bonanza,