One of the stars from the movie 500 Days of Summer, Zooey Deschanel, will be joining her real life sister, Emily Deschanel, on FOX's Thursday night Bones.
Zooey will play Margaret Whitesell, a distant relative of Emily's Dr. Temperance Brennan. Brennan's father, Max Keenan, invites Margaret to spend Christmas with him and his daughter.
