Molly Parker (The Road, Deadwood) is the latest addition to the cast of Dexter's sixth season. According to TVLine, [spoilers] she'll be playing the sister of Colin Hank's character in the show for "several episodes". [end spoilers]
The new season of Dexter has been picking up a number of new cast members, including Mos Def, Edward James Olmos, Colin Hanks, Brea Grant, and Billy Brown. With many of these characters appearing over multiple episodes and the possibility of some staying around past this season, it will be interesting to see how all of these new actors shake up the Dexter formula we've come to know over the first five seasons.
For more information on the upcoming season's plot, as well as a teaser trailer, check out our previous coverage: http://dailydead.com/dexter-season-6-teaser-trailer-plot-info/