- David Letterman (Self - Host)
- Paul Shaffer (Self -Musical Director)
- Alan Kalter (Self - Announcer (voice))
Late Show with David Letterman — S4E126
Episode: Dan Akroyd, David Kruithoff, Cyndi Lauper
Air Date: 1997-04-02
Overview
A man claiming to be Paul's brother Kenny sits in the audience, while amateur dentist David Kriuthoff fidgets with a special camera that can go inside the mouth.