The writers eventually wanted to flesh out the concept of hunters, resulting in the introduction of many new characters. Actor Jim Beaver makes his first appearance as Bobby Singer, an old family friend of the Winchesters, at the end of the first season. Becoming a sort of surrogate father to Sam and Dean after their father's death, the character acts as their mentor and foremost point of contact before his departure in the seventh season. Other hunters appear in the second season with the introduction of Harvelle's Roadhouse, a saloon frequented by hunters. It is owned by Ellen Harvelle (played by Samantha Ferris), whose late husband was a friend of John Winchester. Working alongside her mother is Jo Harvelle (played by Alona Tal). Also present is the computer guy Ash (played by Chad Lindberg), who uses his vast computer skills to track the paranormal. Tal was eventually written out of the series, and believes the reason to be that the producers felt she looked like Sam and Dean's "14-year-old sister". Kripke claims the character was incorrectly conceived, and also cites poor fan reaction for her removal. Also, the character of Ash is killed off in the second-season finale with the destruction of the Roadhouse. Ellen was meant to return in the third season, but the episode had to be scrapped due to the writer's strike. The writers intended for her to be featured in the third-season finale, but Ferris declined because the deal offered to her was not acceptable, as "It could cost money and work". However, both actresses returned as Jo and Ellen in the fifth season.