What's My Line? (1950) was a famous game-show hosted by John Daly, were celebrity panelists were challenged to determine the occupation of the contestants. It also had a section with a mistery guest, where panelists had to identify the identity of a celebrity while blindfolded. In both sections the panel asked questions that could be answered yes or no, and the questioning could continue for a given time or until the panel got 10 negative answers.
What's My Line? became one of the most successful game shows in history, it inspired many similar versions around the world, won several Emmys and Golden Globes and in its run of 17 years it became the longest running game-show in U.S. primetime television.
After getting cancelled in 1967 it was immediatly followed by a syndicated daily production that run until 1975.
During its original run of 876 episodes, hundreds of celebrities prticipated in What's My Line?, and several of them were mistery guests more than once.
If you had been a What's My Line? panelist, Which of these Mistery Guests would have been harder for you to discover?
The poll only includes the celebrities with more than 4 appearances in the show.