Heather Michele O'Rourke (December 27, 1975 -- February 1, 1988) was an American child actress. She was discovered by director Steven Spielberg when she was visiting MGM 's studios. Spielberg cast her as Carol Anne Freeling in the horror film Poltergeist (1982), where she had the movie 's most recognizable line: "They 're here! '' She reprised the role in the second and third installments.
who played the little blonde girl in poltergeist
Heather Michele O'Rourke