News Alan Kalter, longtime voice of the ‘Late Show with David Letterman,’ dies at 78 October 5, 2021 Hannah Yasharoff, USA TODAY Comments Off on Alan Kalter, longtime voice of the ‘Late Show with David Letterman,’ dies at 78 Alan Kalter, the longtime voice of the "Late Show with David Letterman," has died at age 78. Letterman dubbed him "the best announcer in television."