Jock Mahoney (February 7, 1919 – December 15, 1989) was an American actor and stuntman of Irish, French, and Cherokee ancestry.Born Jacques Joseph O'Mahoney, he was credited variously as Jock Mahoney, Jack O'Mahoney or Jock O'Mahoney. He starred in two western television series, The Range Rider and Yancy Derringer.