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.
Fred Allen
A comedy series, "Fred Allen's Sketchbook," did not catch on. He landed a two-year stint as a panelist on the CBS quiz show "What's My Line?" from 1954 until his death in 1956 (March 17, 1956). Allen actually appeared as a Mystery Guest on "What's My Line?" on July 17, 1955, when he was taking a week off from the show to have an emergency appendectomy. Afterwards he joked about the operation: "It was an emergency. The doctor needed some money hurriedly."