He died due to the complications from dementia on Saturday, confirmed his son, Sean Brown, according to The Hollywood Reporter.
A star running back for the American football team, Philadelphia Eagles, appeared as Cpl. Judson in the 1970s 'M*A*SH'.
In 1975, the late actor-footballer played as Grand Ole Opry singer on Altman's movie 'Nashville.'
( With inputs from ANI )