This article is a stub. You can help the Law & Order Wiki by expanding it. Willem Mueller is one of the characters in the Law & Order: Special Victims Unit episode Sacrifice. He is portrayed by Dylan Chalfy. Retrieved from "https://lawandorder.fandom.com/wiki/Willem_Mueller?oldid=148504" Categories: Law & Order Wiki stubs Males SVU Characters Rapists Community content is available under CC-BY-SA unless otherwise noted.