Late Show with David Letterman Season 20 Episode 68

Jack Hanna; Benedict Cumberbatch

Animal expert Jack Hanna; from "Star Trek: Into Darkness", actor Benedict Cumberbatch.

Season 20

Season 1Season 2Season 3Season 4Season 5Season 6Season 7Season 8Season 9Season 10Season 11Season 12Season 13Season 14Season 15Season 16Season 17Season 18Season 19Season 20Season 21Season 22

1–100101–179

1–3031–6061–100

616263646566676869707172737475767778798081828384858687888990919293949596979899100