- David Letterman (Self - Host)
- Paul Shaffer (Self -Musical Director)
- Alan Kalter (Self - Announcer (voice))
Episode: Bill Cosby, Andrew Firestone, Clark Tery, Sofia Vergara, The DA
Air Date: 2003-03-25
In a bizarre running gag, Bill Cosby pretends to be so senile that a substitute cue-card boy introduces all of tonight's guests; Hilton Ruiz, Spaceman Paterson, Steve Berrios, and Andy Gonzales all sit in lieu of a temporary depleted band tonight (only Paul, Sid and Bruce bothered to show up); Sofia Vergara promotes Chasing Papi; the D4 performs ""Get Loose.""