John Charles Daly
Daly's first foray into television was as a panelist on the game show "Celebrity Time". This led to a job in 1950 as the host and moderator on a new panel show produced by Goodson–Todman, "What's My Line?" The show lasted 17 years with Daly hosting all but four episodes of the weekly series.
Mary Louise Rasmuson
She was the first guest contestant on the February 3, 1957 episode of "What's My Line". With one no answer left, Dorothy Kilgallen correctly identified her occupation. "Are you head of the whole thing." she asked.