The evil and deceased Doris Nichols
Doris Nichols was the secondary villainess from "True North," episode 9.09 of Law & Order (airdate December 9, 1998). She was a friend of Stephanie Harker in the episode.
Stephanie was facing the end of her marriage to wealthy Ron Harker, as he saw his second wife as nothing more than a gold digger. She confided in Doris regarding the divorce, and afterwards, Doris turned heel and accepted Stephanie's offer to collude with her in a plot to kill not only Ron, but her stepdaughter, Caitlin as well. After being promised a $50,000 payment from Stephanie, the evil Doris entered the Harker household and shot both Ron and Caitin to death. The villainess later met with Stephanie after the murders were committed, only to be shot to death by Stephanie, who wanted to cover her tracks.