Mary McDonnell to Guest Star on Grey's Anatomy

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In guest star news, actress Mary McDonnell of Battlestar Galactica is said to be in talks to appear in a multi-episode story arc on Grey’s Anatomy in Season Five.

Arepresentative for the medical drama confirmed this Monday. Grey's Anatomy is currently shooting its tenth episode, and if contracts are signed soon, as is expected, we assume Mary McDonnell will be in action, shooting scenes with the cast of the show shortly.

Mary McDonnell

Given that McDonnell’s episodes fall in the middle of the Grey’s Anatomy season, it’s not known whether they will air before or after the December break.

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


Grey's Anatomy Quotes

Arizona: Oh my God! I mean, I understand why you're into her. She's hot. Wait, she likes you?
Nathan: What? I mean, I'm going to try not to be offended at that.
Arizona: No, no, no. It's just that Derek was--Derek was epic for her. They were the great love story. I mean, that girl's heart beat for Derek Shepherd. It never occurred to me that she would ever be with anyone else. He was perfect. He was everything. That man turned her world. It...I spooked you. Don't be spooked.

MEREDITH: "You don't get to call me a whore. When I met you, I thought I had found the person that I was going to spend the rest of my life with. I was done! All the boys and all the bars and all the obvious daddy issues, who cares? I was done. You left me. You chose Addison. I'm all glued back together now. I make no apologies for how I chose to repair what you broke. You don't get to call me a whore."
DEREK: "This thing with us is finished. It's over."
MEREDITH: "Finally."
DEREK: "Yeah, it's done."
MEREDITH: "It is done."