- David Letterman (Self - Host)
- Paul Shaffer (Self -Musical Director)
- Alan Kalter (Self - Announcer (voice))
Late Show with David Letterman — S18E168
Episode: Jonah Hill, Kristen Johnston, Ryan Adams
Air Date: 2011-12-05
Overview
Dave welcomes actor Jonah Hill, actress Kristen Johnston, and musical guest Ryan Adams. Do all celebrities know each other? Jonah's mom thinks so. Kristen tells Dave about her drug problem.