brother, and also a recurring love interest for Karen Roe, Lucas Scott's mother and Dan's ex. Keith was portrayed as Lucas's father figure, and was dearly loved by most characters in the show. He was a mechanic and spent a lot of time teaching Lucas about cars. Keith was in love with Karen from their schooldays and despised the way his younger brother Dan had treated her when she became pregnant and had his son. After Dan and Deb split up for a short time, Keith ended up sleeping with Deb. Dan was angry when he found out and accused Keith of always wanting his leftovers. In revenge Dan hired Jules to make Keith fall in love with her and to stand him up at the altar. Instead she actually fell in love with Keith but left when Karen found out about Dan's plan and told her to leave Tree Hill or she would tell Keith the truth. In season three, Dan shot and killed Keith as he believed Keith had attempted to murder him in the dealership fire. After he was killed by Dan, Karen finds out that she is pregnant with his daughter Lilly Roe Scott. Following his death, Keith continued to have a lasting influence on Tree Hill and the lives of those who lived there. His ghost visited Lucas during his near death, Karen while she's giving birth, and haunted Dan while he was in prison. 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". Karen Roe 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. Lucas finds out that Karen lied to him when Dan tells him that he wanted joint custody of him and Karen refused. She is a businesswoman and owned Karen's Cafe and TRIC nightclub, the venue where both Lucas and Nathan had their wedding receptions. She is seen as a mother figure to Haley, often offering her support and advice. After the breakup