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Filmography: "'Halloween H20: 20 Years Later"
Update: O'Keefe spent time modeling and acting on "Nash Bridges" before making her big screen debut in "Halloween H20." From there she bounced back in forth between television and film, playing queen bee Taylor Vaughan in the teen flick "She's All That," and more recently as the villainess Gretchen Morgan in "Prison Break." She also had a small recurring role in "Two and a Half Men."