Jonathan Kimble Simmons has built a decades-long career on being ‘that guy from that film’ (Justice League, Juno ... 61-year-old JK can be seen curling two dumbbells, biceps bulging.

but after shooting wrapped Simmons felt he was ready for a full-body change. "He wanted to get into the best shape he had ever been in," Williamson says, adding, "J.K.'s goal was to adopt a ...