Ellen and Jo

Ellen and Jo Harvelle are mother and daughter. They also live and work together at the Roadhouse. They have a good relationship besides the fact that Jo wants to want, and Ellen won't let her. Eventually, Jo does get into hunting and Ellen joins her. Ellen strongly believes if her daughter is going to put herself in danger, she gonna be there to protect her. They are together till the end.

Background
Ellen and Jo have lived at the Roadhouse all their lives before they met Sam and Dean. Ellen's late husband Bill, was a hunter, which is why Ellen and Jo know so much about the supernatural. Then on a mission with John Winchester, Bill gets killed. After losing Bill, Ellen makes sure that Jo never gets near anything related to hunting. Although she doesn't let Jo walk around unprotected. Jo carries a knives with her so she can protect herself. Although, Jo still wants to go into the hunting lifestyle despite her mother's wishes.