Robert LeRoy Parker (April 13, 1866 – November 6, 1908/1936?), better known as Butch Cassidy, was a notorious American train robber, bank robber, and leader of the Wild Bunch Gang in the American Old West.
William Ellsworth "Elzy" Lay (November 25, 1868 – November 10, 1934) was an outlaw of the Old West best known as being a member of Butch Cassidy's Wild Bunch, gang, operating out of the Hole-in-the-Wall Pass in Johnson County, Wyoming. Lay was Cassidy's best friend and assisted Cassidy in leading the Wild Bunch gang.
Harry Alonzo Longabaugh (1867 – possibly November 6, 1908), better known as the Sundance Kid, was an outlaw and member of Butch Cassidy's Wild Bunch, in the American Old West.
Ben Kilpatrick (January 5, 1874- March 12, 1912) was an American outlaw during the closing days of the American Old West. He was a member of the Wild Bunch gang led by Butch Cassidy and Elzy Lay.
William "News" Carver (September 12, 1868 – April 2, 1901) was an American outlaw and a member of Butch Cassidy's Wild Bunch during the closing years of the American Old West.
Laura Bullion (October 1876 – December 2, 1961) was a female outlaw of the Old West.
George Sutherland Curry (1864 – April 17, 1900), also known as Flat-nose Curry, was an American robber of the American Old West. Curry was a mentor to Harvey Logan, who would adopt the surname Curry, and the two robbed banks together before both became members of Butch Cassidy's Wild Bunch. Curry would be killed by a Sheriff while rustling in Grand County, Utah.
Harvey Alexander Logan (1867 – June 17, 1904), also known as Kid Curry, was an American outlaw and gunman who rode with Butch Cassidy and the Sundance Kid's infamous Wild Bunch gang.