sentences:  Many years later, after Dan was shot and killed upon rescuing Nathan, Keith returned to praise Dan for learning to put family first, make amends with him, and they both go to the afterlife as he tells Dan he's his "plus one".Played by Moira Kelly as a series regular from seasons one till four and as a special guest star in seasons five and six, Karen Roe is the single mother to Lucas Scott.She has a very fraught relationship with Lucas' father, Dan Scott because Dan had left her and Lucas to attend college.