Name	Known for
David Letterman Self - Host Self - Host See fewer	Late Show with David Letterman (1993)
Bruce Willis Self - Guest / Various Self - Guest / Various See fewer	Die Hard (1988)
Ben Harper Self - Musical Guest Self - Musical Guest See fewer	The Fighter (I) (2010)
Relentless 7 Themselves - Musical Support (as Relentless7) Themselves - Musical Support (as Relentless7) See fewer	The Daily Show (1996)
Andy Kindler Self - Guest / Talk's to Climate Experts Self - Guest / Talk's to Climate Experts See fewer	Raising Dad (2001)
Paul Shaffer Self - Musical Director Self - Musical Director See fewer	This Is Spinal Tap (1984)
Stuart Gaffin Self - Associate Research Scientist Self - Associate Research Scientist See fewer	Late Show with David Letterman (1993)
George Kukla Self - Senior Research Scientist Self - Senior Research Scientist See fewer	Late Show with David Letterman (1993)
Joseph J. Romm Self - Climate Change Expert (as Dr. Joseph Romm) Self - Climate Change Expert (as Dr. Joseph Romm) See fewer	Years of Living Dangerously (2014)
Gavin Schmidt Self - Nasa Climate Scientist Self - Nasa Climate Scientist See fewer	The Secret Life of Scientists and Engineers (2009)
Johnny Dark Stanley Cronkite (uncredited) Stanley Cronkite (uncredited) See fewer	Communion (1989)
Emma Heming Willis Self - Cameo in Green Room (uncredited) Self - Cameo in Green Room (uncredited) See fewer	RED 2 (2013)
Alan Kalter Self - Announcer (voice) (uncredited) Self - Announcer (voice) (uncredited) See fewer	Commander USA's Groovie Movies (1985)
Harry Joseph Letterman Self - Cameo (uncredited) Self - Cameo (uncredited) See fewer	Late Show with David Letterman (1993)