American actress, Rashida Jones, marked her return on the tenth episode of the fourth season of which American comedy television series?
Branch Wars:  The episode marks the return of season three recurring actor Rashida Jones, who plays Jim's former girlfriend Karen Filippelli, now Regional Manager of Dunder Mifflin Utica. Rashida Jones: Rashida Leah Jones (born February 25, 1976) is an American actress, producer, singer, and writer.
i don't know