Name	Known for
David Letterman Self - Host Self - Host See fewer	Late Show with David Letterman (1993)
Martin Short Self - Guest Self - Guest See fewer	Innerspace (1987)
Amy Ryan Self - Guest Self - Guest See fewer	Gone Baby Gone (2007)
Paul Shaffer Self - Musical Director Self - Musical Director See fewer	This Is Spinal Tap (1984)
Jude Brennan Self - Executive Producer in Cold Open Sketch (as Jude) Self - Executive Producer in Cold Open Sketch (as Jude) See fewer	Late Show with David Letterman (1993)
Chris Elliott Self / Bedlam - Plugging the New Show 'American Conquistadors' Self / Bedlam - Plugging the New Show 'American Conquistadors' See fewer	Groundhog Day (1993)
Howard Hersh Self - Musical Timpanist / Supporting Martin Short's Musical Act as Timpanist on the Kettle Drum Self - Musical Timpanist / Supporting Martin Short's Musical Act as Timpanist on the Kettle Drum See fewer	Guys Next-Door (1990)
Phil McGraw Self (archive footage) (as Dr. Phil) Self (archive footage) (as Dr. Phil) See fewer	Scary Movie 4 (2006)
Gerard Mulligan Self - Plugging the New Show 'American Conquistadors' Self - Plugging the New Show 'American Conquistadors' See fewer	Late Night with David Letterman (1982)
Alan Kalter Self - Announcer (voice) (uncredited) Self - Announcer (voice) (uncredited) See fewer	Commander USA's Groovie Movies (1985)