The Late Show with Stephen Colbert Season 3 J.K. Simmons/Rob Riggle Season 3, episode 74 J.K. Simmons/Rob Riggle January 19, 2018 45 min Actor J.K. Simmons (Counterpart (2017)); actor Rob Riggle (12 Strong (2018)); Previous episode Sharon Stone, Rob Riggle, Fall Out Boy Next episode James Corden/Ann Curry