Name	Known for
David Letterman Self - Host Self - Host See fewer	Late Show with David Letterman (1993)
John Edwards Self - Guest (as Senator John Edwards) Self - Guest (as Senator John Edwards) See fewer	The Daily Show (1996)
Diablo Cody Self - Guest Self - Guest See fewer	Juno (2007)
Josh Ritter Self - Musical Guest Self - Musical Guest See fewer	Aloha (I) (2015)
Paul Shaffer Self - Musical Director Self - Musical Director See fewer	This Is Spinal Tap (1984)
David 'Fathead' Newman Jr. Self - Sitting in with the band Self - Sitting in with the band See fewer	Kansas City (1996)
Tom Catusi Self - Late Show Video Operator (uncredited) Self - Late Show Video Operator (uncredited) See fewer	Late Show with David Letterman (1993)
Johnny Dark Johnny Twain (uncredited) Johnny Twain (uncredited) See fewer	Communion (1989)
Rupert Jee Self (uncredited) Self (uncredited) See fewer	Ed (2000)
Tony Mendez Self - Cue Card Boy (uncredited) Self - Cue Card Boy (uncredited) See fewer	Late Show with David Letterman (1993)