Jamie Gray Hyder: Jamie Gray Hyder. Actress: True Blood. Jamie Gray Hyder is a classically trained, Lebanese-American actor and advocate from the Washington, DC area, most recently known for her series regular role as Officer Katriona 'Kat' Tamin on Law & Order: SVU. Over the last decade, her work on iconic TV shows, in cult-classic video games and as crowd-favorite animated characters has rounded out her unique professional experience. In her free time,...