Name	Known for
David Letterman Self - Host Self - Host See fewer	Late Show with David Letterman (1993)
Steve Carell Self - Guest Self - Guest See fewer	The Office (2005)
Chris 'Mad Dog' Russo Self - Guest (as Christopher 'Mad Dog' Russo) Self - Guest (as Christopher 'Mad Dog' Russo) See fewer	Bad Lieutenant (1992)
Band of Horses Themselves - Musical Guest Themselves - Musical Guest See fewer	Battleship (2012)
Chris Elliott Self - Plugging 'Skink, The Bounty Hunter' Self - Plugging 'Skink, The Bounty Hunter' See fewer	Groundhog Day (1993)
Gerard Mulligan Self - Plugging 'Skink, The Bounty Hunter' Self - Plugging 'Skink, The Bounty Hunter' See fewer	Late Night with David Letterman (1982)
Paul Shaffer Self - Musical Director Self - Musical Director See fewer	This Is Spinal Tap (1984)
John Merrick Elephant Man Elephant Man See fewer	The Messenger: The Story of Joan of Arc (1999)
Barbara Gaines Self - Executive Producer (uncredited) Self - Executive Producer (uncredited) See fewer	Late Show with David Letterman (1993)