Courtney Ford, who played the Trinity Killer’s daughter, Christine, on Dexter last season, has signed on to guest star on Grey's Anatomy in an upcoming episode as the sister of a lung transplant patient. She and the patient will surely influence one of the doctors' lives.

Entertainment Weekly reported the news today.

It's unclear which Season Six episode she'll be appearing in, but the show always does a terrific job with its guest casting, so we're sure she'll do great in the role.

Courtney Ford is coming to Grey's Anatomy.

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