Today marks the day on which, in 1907, " What's My Line " regular Arlene Francis was born. Francis was a New York native and a Finch College graduate, who achieved a relatively painless entry into show business. Her first big play appearance was when she was a mere 21, and she would go on to act in 25 Broadway plays. Radio-wise, the fetching starlet joined the cast of the intelligent and challenging game show " What's My Line ?" The show was hosted by John Charles Daly and featured, along with Francis, high-brow personages such as Bennett Cerf and Dorothy Kilgallen . One thing to recall about " What's My Line ?" is that in addition to the main guessing game, the panelists also attempted to divine the identity of a mystery guest at the show's end. MG's included Jimmy Stewart , Orson Welles , Marlene Dietrich and a host of others. Thanks for the memories, Arlene!