Late Show with David Letterman Season 21 Characters & Cast — No Spoilers
Every character in Late Show with David Letterman season 21 with photos and the actors who play them, including David Letterman, Paul Shaffer, Alan Kalter — spoiler-free, nothing from later seasons.
- Self - Host — played by David Letterman
- Self -Musical Director — played by Paul Shaffer
- Self - Announcer (voice) — played by Alan Kalter
- 'Otis Elevator App Commercial' Voiceover (voice) / 'The Queen visits a TV Show' Voiceover (voice) / 'A Message For Allergy Sufferers' Voiceover (voice) / Narrator (Mailman Kept Mail at His House) (voice) — played by Edd Hall
- Self — played by Scarlett Johansson
- Self — played by Susan Sarandon
- Self — played by Whitney Cummings
- Self — played by Angel Olsen
- Self — played by John Grant
- Self - Guest — played by Nia Sanchez
- Self - Musical Guest — played by Janelle Monáe
- Self - Guest — played by Tatiana Maslany
- Self — played by Regis Philbin
- Self — played by Paul Morrissey
- Self — played by Olivia Wilde
- Self — played by Shep Gordon
- Self — played by Dana Carvey
- Self — played by Ellie Kemper
- Self — played by Sam Smith
- Self - Guest — played by Jeff Altman
All seasons of Late Show with David Letterman: full spoiler-free character guide