Ellen and Jo are both mother and daughter who were hunters biologically related to the Winchester family in the past. Ellen is played by Samantha Ferris and Jo is played by Alona Tal. They live and work together at the roadhouse for various amount of years. They have had a good relationship besides the fact years ago Jo wanted to hunt with her mother but wasn't able to because of her age. Eventually, Jo does get into hunting and Ellen joins her. Ellen strongly believes that her daughter will end up in trouble and is going to put herself in danger that one another is going to put themselves in danger to ensure the other's safety similar to the Winchester's pact. They are together til the very end.