Name	Known for
David Letterman Self - Host Self - Host See fewer	Late Show with David Letterman (1993)
Mary-Kate Olsen Self - Guest Self - Guest See fewer	It Takes Two (1995)
Jim Gaffigan Self - Guest Self - Guest See fewer	Chappaquiddick (2017)
Gavin DeGraw Self - Musical Guest Self - Musical Guest See fewer	Safe Haven (I) (2013)
Paul Shaffer Self - Musical Director Self - Musical Director See fewer	Hercules (1997)
Mark Odgers Self - Jumps 10 Interns and Dunks a Basketball on 53rd Street Self - Jumps 10 Interns and Dunks a Basketball on 53rd Street See fewer	Non-Stop (2014)
Tom Catusi Self - Late Show Video Operator (uncredited) Self - Late Show Video Operator (uncredited) See fewer	Late Show with David Letterman (1993)
Joe Grossman Rudy - Lyle's Friend (uncredited) Rudy - Lyle's Friend (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)