The ABC medical saga “was the first drama I did, so I was just a fly on the wall. I had that feeling of, ‘Do I look like a serious actress?'” Jean Villepique says.

The one-day gig allowed her to work with a friend (episode director David Greenspan), wear a nurse’s scrubs and listen in as the show’s regulars discussed (wait for it) "Grey's" fan fiction.

“They were like, ‘This is crazy. Our characters are hooking up in their fan fiction,'” she says. “And I was like, ‘That exists?’ I’m so naïve.”

http://tvline.com/gallery/memories-from-the-set-jean-villepique/#!4/jean-villepique-greys/