That was over 7 years ago in 2014.
Today he is 66, and has starred in 104 movies in total, 28 since Whiplash was released.
In Whiplash, I think J.K. Simmons looks:
Whiplash scores 8.3 out of 10 on The Movie Database.
J.K. Simmons' first acting role was as 'Patrolman in Park' in Popeye Doyle, released in 1986 when he was 31.