- David Letterman (Self - Host)
- Paul Shaffer (Self -Musical Director)
- Alan Kalter (Self - Announcer (voice))
Late Show with David Letterman — S18E75
Episode: Keith Olbermann, Julie Bowen, Ben Harper
Air Date: 2011-05-18
Overview
Dave welcomes TV host Keith Olbermann, actress Julie Bowen and Ben Harper performs.