The Late Show with Stephen Colbert Season 4 Ellie Kemper, Sam Elliott Season 4, episode 23 Ellie Kemper, Sam Elliott 10.0 / 10 October 5, 2018 45 min Stephen welcomes actress Ellie Kemper and actor Sam Elliott. Previous episode Lady Gaga, Caitlin Peluffo Next episode Melissa McCarthy, Phoebe Robinson