Long played Diane on the show's first five seasonsCheers ran for eleven seasons — including six after star Shelley Long left — but the show’s success was anything but certain. Glen and Les Charles, brothers who co-created Cheers,

There were some critics that said when Shelley walks out the door, that's the end of ‘Cheers.’ And we had to live with that," said "Cheers" co-creator Glen Charles.

The creators of the iconic sitcom Cheers weren’t certain the show could continue at the conclusion of Season 5. Glen and Les Charles recently guested on an episode of the Where Everybody Knows Your Name podcast hosted by former Cheers actors Ted Danson and Woody Harrelson,