Name	Known for
David Letterman Self - Host / Various Self - Host / Various See fewer	Late Show with David Letterman (1993)
Michelle Pfeiffer Self - Guest Self - Guest See fewer	The Fabulous Baker Boys (1989)
Judah Friedlander Self - Guest / Various Self - Guest / Various See fewer	Feast (2005)
Ian McLagan Self - Musical Guest Self - Musical Guest See fewer	This Is 40 (2012)
The Bump Band Themselves - Musical Guest Themselves - Musical Guest See fewer	Inferno: The Making of 'The Expendables' (2010)
Paul Shaffer Self - Musical Director Self - Musical Director See fewer	This Is Spinal Tap (1984)
Jude Brennan Self - Apologizing Executive Producer in Cold Open Sketch (uncredited) Self - Apologizing Executive Producer in Cold Open Sketch (uncredited) See fewer	Late Show with David Letterman (1993)
Patty Griffin Self - Musical Support (uncredited) Self - Musical Support (uncredited) See fewer	Elizabethtown (2005)
Joe Grossman Joe Grossman - Rally Protester (uncredited) Joe Grossman - Rally Protester (uncredited) See fewer	Full Frontal with Samantha Bee (2016)
Alan Kalter Self - Announcer (voice) (uncredited) Self - Announcer (voice) (uncredited) See fewer	Commander USA's Groovie Movies (1985)
Jimmi Simpson Lyle the Intern (uncredited) Lyle the Intern (uncredited) See fewer	Dark Matter (2024)