Gary Burghoff, American actor
Gary Rich Burghoff (born May 24, 1943) is an American actor who is known for originating the role of Charlie Brown in the 1967 Off-Broadway musical You're a Good Man, Charlie Brown, and the character Corporal Walter Eugene "Radar" O'Reilly in the film MASH, as well as the TV series. He was a regular on television game show Match Game from 1974 to 1975 for 140 episodes, standing in for Charles Nelson Reilly, who was in New York doing a Broadway play, but continued to make recurring appearances afterwards.