Ralph Gunderman Courtesy Gunderman family Share on Facebook Share on X Google Preferred Share to Flipboard Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Send an Email Print the Article Post a Comment Ralph Gunderman, the amiable voice artist and actor who spent more than a decade as the announcer on NBC's Dateline while contributing to comedy bits on Late Show With David Letterman, has died. He was 77.