9. HANIA BARTON

Sister of: Mischa Barton

To be fair, Mischa might not exactly be a portrait of excellence, herself. Word on the street is she’s currently hawking Chinese sex toys, perhaps to cover some of the $90K-plus medical bills she owes to a nursing company for “unspecified treatments.” (Really, that’s it?)

However, in what might be seen by some as a competition for the title of “Most Undesirable Barton,” Hania, not to be outdone by Mischa’s DUI only hours earlier, was taken to the hospital after reportedly ODing on muscle relaxers. Oh, and this all took place just after Christmas. We can only imagine the family greeting card.