The medical drama has been on television for 13 seasons and it’s still going strong! Over that time, the main cast has changed because so many of the original stars have either been fired or were ready to move on from the show.
But what many fans haven’t realized is how many celebrities have been part of the revolving door of patients that come in and out of Grey Sloan Memorial Hospital. Some of the guest-stars were already famous when they took on small roles as patients or doctors, while others weren’t known yet when they appeared on the series.
So which celebrities were on the show that you might have forgotten about? Here are 15 celebrities who guest-starred on Grey’s Anatomy.
1. Demi Lovato in ‘Shiny Happy People’
The actress did star in the Disney show, Sonny with a Chance and Glee, but she pretty much sticks to music now. Before making the switch, she guest-starred in Season 6 of Grey’s Anatomy. She played Haley May who was diagnosed as a paranoid schizophrenic but claims she’s not crazy. The character has scratches around her eyes from trying to claw them out and has to be restrained by having her hands tied to the bed. Dr. Alex Karev helps treat her.
When her parents try to get her committed, she threatens to stab herself with a syringe full of lorazepam. Alex stops her and says that he believes she’s not crazy.
The singer gives a pretty good performance, but her character’s story only lasts one episode.