Leslie Nielsen was 61 in The Naked Gun: From the Files of Police Squad! when he played the character 'Lt. Frank Drebin'.
That was over 35 years ago in 1988.
In 2010 he died aged 84, starring in 123 films in his career, 46 of those after The Naked Gun: From the Files of Police Squad! was first released. If he were alive today he would be 98.
In The Naked Gun: From the Files of Police Squad!, I think Leslie Nielsen looks: