KEY POINTS:
Mary-Louise Parkerhas broken off her engagement to fellow Weeds actor Jeffrey Dean Morgan.
Parker, who plays an upscale suburban marijuana dealer on the television comedy, reportedly ended the relationship with her actor fiance.
Morgan, best known for his recurring role as Denny on the medical show Grey's Anatomy and the deceased husband of Parker's character on Weeds, began dating Parker in 2006.
The pair briefly split last June but later reconciled. Parker, 43, and Morgan, 41, announced their engagement this year.
