Susan Chambliss was a county social worker.
In 1997, she took Emily Christine Sim into custody after her mother Roberta Sim apparently committed suicide. When Dana Scully submitted an application to adopt Emily, Chambliss reviewed but informed Scully later that she could not recommend approval due to the inherent risks in Scully's job. Nevertheless, she heard Scully's plea again and promise to talk with the judge. (TXF: "Christmas Carol") Afterward, she came back to her at the hospital to express concerns about Scully's ability to make decisions for Emily, despite her medical expertise. She later attended Emily's funeral. (TXF: "Emily")