Name	Known for
David Letterman Self - Host Self - Host See fewer	Late Show with David Letterman (1993)
Craig Ferguson Self - Guest Self - Guest See fewer	I'll Be There (2003)
Ira Glass Self - Guest Self - Guest See fewer	This American Life (2007)
The Black Crowes Themselves - Musical Guest Themselves - Musical Guest See fewer	Mission: Impossible III (2006)
Paul Shaffer Self - Musical Director Self - Musical Director See fewer	This Is Spinal Tap (1984)
Biff Henderson Self - Modelling for Balloon Portrait Self - Modelling for Balloon Portrait See fewer	Larry Crowne (2011)
Todd Neufeld Self - Balloon Artist Self - Balloon Artist See fewer	Mister Rogers' Neighborhood (1968)
Chris Elliott President John Adams (uncredited) President John Adams (uncredited) See fewer	Groundhog Day (1993)
Alan Kalter Self - Announcer (voice) (uncredited) Self - Announcer (voice) (uncredited) See fewer	Commander USA's Groovie Movies (1985)
Gerard Mulligan Abigail Smith Adams (uncredited) Abigail Smith Adams (uncredited) See fewer	Late Night with David Letterman (1982)