Played by: Bill Cosby and Phylicia Rashad

Where did Phylicia Ayers-Allen (later Phylicia Rashad) come from? Nowhere—when she started on The Cosby Show in 1984, she was a complete unknown, instantly the newest and best MILF in the world. Together, she and Bill Cosby had a clear sexual interest in each other at all times. And she wasn't shy about playing the sexy-wife card, which is cool considering she had (in teeveeland) a college-age daughter. We can only imagine what sort of things they were doing to each other off-screen.

Actually, we don't have to imagine—we've seen the face Bill Cosby makes when he eats a Jell-O Pudding Pop. Gotta figure it was something like that, only better.