Grey's Anatomy Scoop: Neve Campbell Spills Some Secrets About Derek's Mystery Sis

Neve Campbell Previews Grey's AnatomyThe other other Dr. Shepherd is in.

Shedding a bit of light on her mysterious Grey’s Anatomy character aka Derek’s sister Liz, Neve Campbell confirms for TVLine that her character, debuting Dec. 6, is a doctor — just like her brother and their three other siblings — and that she and Derek “do get along… to an extent.”

PHOTOS | Grey’s Anatomy First Look: Neve Campbell Checks In as Derek’s Sister!

Speaking with us during a conference call to promote her upcoming Lifetime movie An Amish Murder, Campbell noted, “There’s not a great deal” she could reveal about Liz, though she did go on to say that she surfaces in Seattle as part of the storyline surrounding supersurgeon Derek’s damaged hand and his endeavor to have it repaired.

Dr. Liz Shepherd marks the third of Derek’s four sisters to appear on Grey’s; Caterina Scorsone plays black sheep Amelia over on Private Practice, while Embeth Davitz guested as Nancy during Season 3.

VIDEOS | Grey’s Anatomy Sneak Peeks: Who’s Copping a Feel With Mer?! Plus: Owen Lays a Guilt Trip

Campbell shared that her multi-episode Grey’s visit marked the first time she had seen Patrick Dempsey — whom she hails as “a great guy” — since they filmed Scream 3 together in 1999. Surveying her stint on the long-running ABC drama, she reports, “They’ve been on that show for nine years and they definitely know what they’re doing, so it was fun to be around a group that had been working together so long.”

Campbell herself may return to series television if the aforementioned Amish Murder TV-movie — in which she stars as a woman who grew up Amish and returns to her small town as Chief of Police trying to solve a string of murders — looks lively come Jan. 6 and gets ordered to series a la fellow Party of Five alum Jennifer Love Hewitt’s The Client List.

“I’m having discussions with Lifetime about it,” she told us. “It’s an interesting character and an interesting concept, but I want to know that there’s somewhere to go with it… that we can tell a year’s worth of stories.”