Sarah Michelle Gellar is an American actress and executive producer. She married to Freddie Prinze, Jr. She plays Helen Shivers in I Know What You Did Last Summer, Casey "Cici" Cooper in Scream 2 and Candy Norman in Halloween 3D. She also plays Kairi Robinson in The Hitchhiker. and she plays Cordeila Nightgale The Haunting Of the house. and she also plays Elizabeth Collins in Blair Witch 3:The Legend of Elly Kedwards and Blair Witch 4:The Execution of Rustin Parr and Blair Witch 5:The Coffin Rock. and she she plays Cordeila Richardson and Elizabeth Báthory in The Vampire Knight (Film Franchise).