Guest Stars Henry Simmons as Alphonso "Mack" Mackenzie Kyle MacLachlan as Dr. Calvin Zabo Jamie Harris as Gordon Blair Underwood as Dr. Andrew Garner Drea de Matteo as Karla Faye Gideon Co Starring Jack Kennedy as Security Guard Jamal Duff as John Bruno Ric Sarabia as Wendell Levi Geo Corvera as Francis Noche Jeff Daniel Phillips as David Angar Gregg Martin as Student