- David Letterman (Self - Host)
- Paul Shaffer (Self -Musical Director)
- Alan Kalter (Self - Announcer (voice))
Episode: Alec Baldwin, Heather Graham, Barenaked Ladies
Air Date: 1998-04-01
Paul is introduced as Cubby O'Brien; Heather Graham meets The Guy on Fire; Alec Baldwin helps Heather in a weird April Fool's gag in which they sign off and wish everybody a good night a la Saturday Night Live.