I know the panel shows What's My Line and I've Got A Secret brought on a lot of diverse celebrities and famous people who appeared a couple of times as special panelists, in single segments and/or Mystery Guests within the episode.

But what about shows that had diverse list of celebrities who actually played the game for a full week?

After winding up binge watching a slew of random Tattletales episodes recently, besides the regular and semi-regular couples who appeared on that show, it seemed like that G/T show brought on the most variety of celebrities you did not see on any other show.

For example, seeing the likes of singer James Brown, songwriter Sammy Cahn, and legendary boxer Sugar Ray Robinson playing at least one week's worth of shows...with their partners...sharing some of their more personal and intimate stories with America.  Kudos to the staffers who convinced these lesser-known people to appear and play a game show.  Peter Marshall's Hollywood Squares is another great example of variety, but TT seemed a tad better in bringing out "I can't believe they got them on the show" names.

Thoughts?

It's interesting how many times Rosie O'Donnell has come up in this thread, and she was the first person that came to mind for me for yet another example.

Rosie was a big fan of Regis' Millionaire, and at one point made a public plea to be someone's "phone a friend". In the year 2000, that wish became a reality when contestant Jerry Halpin chose Rosie to be his lifeline for the $32,000 question. After providing her guess at the answer, Rosie said she'd pay the contestant if her answer was wrong. Here's a clip of it on YouTube for anyone interested.

^No, this was still during the "pick a star and answer one main game-type question correctly to win" bonus game.

Smartest thing Strahanamid does is forcing the contestant to do the heavy lifting, takes that problem away.

I do recall an episode of Donnymid where Colin Mochrie gave three illegal clues.

This reminds me of when Rosie O'Donnell did a week of Bergeron Squares sometime around February 2000 when two contestants picked her for the bonus round and they lost the prize they were playing for; she invited both of them to come on the talk show she had at that time, and she ended up giving them free trips somewhere (not sure where).