Mandy Moore: Guest Starring on 'Grey's Anatomy' Season Finale

Mandy Moore is headed to Seattle Grace!

The 25-year-old singer and actress will play a patient named Mary on the season finale of Grey’s Anatomy, according to TV Guide.

Bailey (Chandra Wilson) will treat Mary in the episode. EW‘s Michael Ausiello reports that Mary’s husband will be played by Veronica Mars alum Ryan Devlin.

The two-hour season finale of Grey’s Anatomy will air May 20 on ABC!!