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.
Isobel Barnett
In 1956, a reviewer predicted that an alien visiting from another planet could ask anyone between the ages of seven and 70 "What is "What's my Line?"" and "Who is Isobel Barnett?" and be confident of getting an answer. She featured in the first revival of "What's My Line?" which ran for two series from 1973-74.