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Mary-Louise Parker, Jeffrey Dean Morgan

Jamie McCarthy/WireImage.com

Mary-Louise Parker and Jeffrey "DOA" Morgan, aka the most killed man on television (on Weeds, Supernatural and Grey's Anatomy), have called it quits. According to People.com, their relationship, which started last December, has wrapped. Their show, on the other hand, is still very much in production, and season three of Weeds premieres Aug. 13 on Showtime. No word yet on what this offscreen split might mean for future flashbacks of their onscreen alter egos, Mr. and Mrs. Botwin.