Oscar Winner J.K. Simmons, 61, Is Completely Jacked for 'Justice League'

J.K. Simmons, well known for his Oscar winning role in Whiplash and as the dad in Juno, has been working out hard at the gym from the looks of his insanely huge muscles!

Celebrity trainer Aaron Williamson has been training the 61-year-old actor for his role in the DC Comics Justice League film, where he plays the role of Commissioner Gordon.

“Every time we train together I forget he’s 61 years old. So much respect for this guy. #JKSimmons #OldManCranking,” Aaron captioned one of the photos on his Instagram account.

Justice League hits theaters on November 17, 2017 and also stars Ben Affleck, Henry Cavill, Jason Momoa, Gal Gadot, Amy Adams, and more.