U.S. actress Laura Innes is to guest star on the science-fiction drama series "Warehouse 13" next month, Syfy said. The former "ER" and "The Event" cast member will appear in the Sept. 17 installment of "Warehouse." She will play Emma Jinks, the mother of Agent Steve Jinks, played by Aaron Ashmore, from whom she has been estranged for two years. "Steve is forced to seek out his mother during an artifact-related crisis, but in order to get to the bottom of his case, he and Emma must first make peace," a synopsis said. "The wonderfully talented Innes gives a heartrending performance as a woman who is desperately trying to mend her relationship with the only child she has left, after her family was torn apart by tragedy," "Warehouse 13" executive producer Jack Kenny said in a statement Tuesday. "Warehouse 13" follows a team of government agents who work at a massive, top-secret storage South Dakota facility, which houses strange artifacts, mysterious relics, fantastical objects and preternatural souvenirs collected by the U.S. government.