David Letterman says he was recently mistaken for comedy legend Dick Van Dyke, who is 21 years his senior: 'Now I have to wear a name tag.'

Letterman recalled the fan encounter while talking to Jimmy Kimmel about his decade off air after hosting 'The Late Show'

David Letterman recently laughed over a recent mix-up where he was mistaken for veteran actor Dick Van Dyke. Letterman probably thought that it was little far-fetched to be confused with someone who is older than him by 21 years as he is 78 years old himself.

David Letterman, 78, has been confused for fan-favorite 99-year-old star - Letterman revealed to Jimmy Kimmel that he no longer gets recognized for his old talk show

Gore detours from campaign trail with stop on Letterman show. NEW YORK (CNN) -- Taking a televised break from the routine of the presidential campaign trail, Al Gore clowned aroun

Regina Lasko and David Letterman's son Harry Letterman was born in November 2003 and mostly stays out of the spotlight. Here’s everything to know about David Letterman’s son.