Gary Burghoff
Acting
Gary Richard Burghoff (born May 24, 1943) is an American actor, known for playing the character Corporal Walter Eugene "Radar" O'Reilly in the MASH series and Charlie Brown in the 1967 Off-Broadway musical You're a Good Man, Charlie Brown. Description above from the Wikipedia article Gary Burghoff, licensed under CC-BY-SA, full list of contributors on Wikipedia.
M*A*S*H: The Comedy That Changed Television
Self
The Real M*A*S*H
Himself
Daniel's Lot
Pastor Mahoney
M*A*S*H: 30th Anniversary Reunion
Himself
Enlisted: The Story of 'M*A*S*H'
Self
Altman on His Own Terms
Self
Behind the Waterfall
Mr. Connors
Small Kill
Fleck / Lady Esmerelda
Memories of M*A*S*H
Self / Radar O'Reilly
W*A*L*T*E*R
Walter 'Radar' O'Reilly
Making 'M*A*S*H'
Self
Casino
Bill Taylor
The Man in the Santa Claus Suit
Bob Willis
Twigs
The Priest
B.S. I Love You
Ted
M*A*S*H
Cpl. 'Radar' O'Reilly