Former Rescue Me and Numb3rs star Diane Farr will guest in an October episode of Grey’s Anatomy as a patient with Huntington’s disease, according to EW.

Farr’s character will be under the care of Meredith (Ellen Pompeo) - the de facto caretaker of SGMWH - and is slated to appear in this season’s fourth episode.

Grey’s Anatomy returns on Thursday, September 23 - what are you most looking forward to when it does? Share your comments and opinions with us below.

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.