Biographie: Rebecca De Mornay  (born August 29, 1959, height 5' 5½" (1,66 m)) is an American film and television actress. Her breakthrough film role came in 1983, when she played Lana in Risky Business opposite Tom Cruise. Her other notable film roles include Sara in Runaway Train in 1985, Helen McCaffrey in the thriller Backdraft in 1991 and her portrayal of the chillingly twisted nanny Peyton Flanders in the popular 1992 thriller The Hand That Rocks the Cradle.