Denver Pyle was 73 in Maverick when he played the character 'Old Gambler on Riverboat'.
That was over 30 years ago in 1994.
In 1997 he died aged 77, starring in 100 films in his career, 2 of those after Maverick was first released. If he were alive today he would be 104.
In Maverick, I think Denver Pyle looks: