Milburn Stone was an American film and television actor, a nephew of actors Fred Stone and Madge Blake, best known as "Doc" on the CBS western series Gunsmoke. He also played a Dr. Blake in the 1943 film Gung Ho!.
Hugh Milburn Stone was born in Burrton, Kansas to Herbert and Laura Stone. He began his screen career in the 1930s, having been featured in Monogram Pictures' series of "Tailspin Tommy" adventures. In 1940, he appeared with Marjorie Reynolds, Tristram Coffin, and I. Stanford Jolley in the comedy espionage film Chasing Trouble. Also in 1940 Stone co-starred with Roy Rogers in the film Colorado, in which he played Rogers's brother-gone-wrong.
He played the liberal minded warden in Monogram Pictures' Prison Mutiny in 1943. He was signed by Universal Pictures in 1943 and became a familiar face in its features and serials. One of his film roles was a radio columnist in the Gloria Jean-Kirby Grant musical I'll Remember April. He made such an impression in this film that Universal gave him a starring role in the 1945 serial The Master Key. One of CBS Radio's hit series, the western Gunsmoke, was adapted for television in 1955 and recast with experienced screen actors. Howard McNear, radio's "Doc Adams," was replaced by Milburn Stone, who gave the role a harder edge consistent with his screen portrayals. He stayed with Gunsmoke through its entire run and was often shown sparring in a friendly manner with costars Dennis Weaver and Ken Curtis, who played, respectively, Chester Goode and deputy Festus Haggen.