FORMER Cheers beauty Shelley Long has turned into a frumpy, sad shell of her former self — and now, her face is unrecognizable following tragedies that nearly killed her!

The 69-year-old actress was recently spotted shuffling around Pacific Palisades — and not a soul recognized the gal, who played snooty know-it-all waitress Diane Chambers on the super-hit ’80s sitcom.

Except for an eight-episode gig on Modern Family and voicing a character on Disney’s cartoon Milo Murphy’s Law last year, Shelley’s largely faded from view.

Get the latest issue of GLOBE Magazine to see these exclusive photos!