1) This first celebrity became famous in the 70s and 80s first as a panelist on a game show and later as the host of one.

Richard Dawson became a favorite panelist on The Match Game and then got to host Family Feud for many years.

2) This character actor found his metier as a collaborator with the foremost composer/lyricist of the musical theater, so even his mature face may not be very well known.

George Furth is best known to Stephen Sondheim fans as the writer of the books to Company and Merrily We Roll Along.

3) Early in his career this actor had the face of a thug, but he’s much better known as the dad of a comedian in a popular sitcom.

Barney Martin is best known as the father of Seinfeld.