Mason Alan Dinehart

Mason Alan Dinehart (born April 30, 1936), also known as Mason Alan Dinehart III, Alan Dinehart III, or Mase Dinehart, is an American business consultant and retired actor best known for his role as a youthful Bat Masterson in thirty-four episodes between 1955 and 1959 of the ABC/Desilu television series The Life and Legend of Wyatt Earp, starring Hugh O'Brian in the title role of the frontier marshal Wyatt Earp.

The Hollywood-born Dinehart was the only son of the actor Alan Dinehart and Dinehart's second wife, actress journalist, casting director and songwriter Mozelle Britton.[2] In 1936, he legally changed his name to Mason Alan Dinehart, the same name as his father, so that his younger son from the second marriage could be known as Mason Alan Dinehart III. This name change created confusion because the senior Dinehart's first son from his first marriage was already Alan Dinehart Jr. (1918–1992),[3] the former animation and voice director for Hanna-Barbera.[4]