- David Letterman (Self - Host)
- Paul Shaffer (Self -Musical Director)
- Alan Kalter (Self - Announcer (voice))
Late Show with David Letterman — S20E140
Episode: Jack Hanna; Kunal Nayyar
Air Date: 2013-10-10
Overview
Animal expert Jack Hanna; from "The Big Bang Theory", actor Kunal Nayyar.