J.K. Simmons was 30 in Popeye Doyle when he played the character 'Patrolman in Park'.
That was over 38 years ago in 1986.
This was his first recorded movie acting credit (although may not technically be his first actual acting role).
Today he is 69, and has starred in 131 movies in total, 124 of those since Popeye Doyle was released.
In Popeye Doyle, I think J.K. Simmons looks: