The Late Show with Stephen Colbert S11 E90 | "I'm Helping People" - David Alan Grier Likes To Play Online Doctor

Tony-winning actor David Alan Grier tells Stephen about his passion for medicine, his early efforts to become a musician, and shows off his silky singing voice. Watch David Alan Grier in "St. Denis Medical" airing Monday nights on NBC. #Colbert #Comedy #DavidAlanGrier #StDenisMedical #NBC #StephenColbert #TheLateShow Air Date: Mar 18, 2026