14 of 19
Worst: Megan gets marginalized
Key episodes: "The Doorway" (601/602); "The Collaborators" (603); "To Have and To Hold" (604); "For Immediate Release" (606); "The Better Half" (609); "In Care Of" (613)
The women Don Draper is involved with tend to be as important to the show as they are to him, so with Don spending much of the season cheating on Megan with Sylvia, the current Mrs. Draper found herself sitting on the sidelines much more than last season. She had a few major moments -- telling Sylvia about her miscarriage, fending off the sexual advances of her coworkers, hosting her visiting mother -- but more often than not wound up looking for various ways to play Don's worried wife. At least until the finale, when Don's flip-flop on moving to California pushed her over the edge and seemingly out the door... for good?