The list of actors joining Michael C. Hall for the new season of Dexter keeps on growing. Former Deadwood star Molly Parker has been added to the cast alongside Colin Hanks, someone she'll have quite a bit of screen time with.

Parker will appear in a handful of season-six episodes as Lisa Marshall, the sister of Hanks' new character Travis. Precious little is known about Travis, meaning precious little is known about Lisa. Though, maybe we can assume that they'll have some possibly nefarious contact with Dexter as the season progresses?

[Via TVLine]