Over the past few weeks former Real Housewives of Potomac cast mate Katie Rost has been airing her dirty laundry on social media [click here if you missed that].
In totally unrelated news, Katie is returning to RHOP...
From Starcasm
Easily the biggest RHOP Season 4 cast news involves the addition of a familiar face. Katie Rost, who last appeared during Season 2 as a guest cast member and was absent for all of last year, will be back as at least a friend, and possibly as a full cast member as the season progresses.
