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.
| Movie | Giving Thanks | Aunt Theodora | 2026 |
| Movie | Off the Record | Kate | 2025-05-02 |
| Movie | Peter Five Eight | Brenda | 2024-03-22 |
| Movie | She Ball | Aggie | 2020-08-21 |
| Movie | Periphery | Vi Warner | 2018-03-26 |
| Series | Lucifer | Penelope Decker | 2016-01-25 |
| Movie | I Am Wrath | Vivian Hill | 2016-04-14 |
| Series | Marvel's Jessica Jones | Dorothy Walker | 2015-11-20 |
| Movie | And the Oscar Goes To... | Self (archive footage) | 2014-02-01 |
| Movie | Apartment 1303 3D | Maddie Slate | 2012-12-06 |
| Movie | American Reunion | Finch's Mom (uncredited) | 2012-04-04 |
| Movie | Flipped | Patsy Loski | 2010-08-06 |
| Movie | Mother's Day | Natalie 'Mother' Koffin | 2010-09-23 |
| Movie | The Dream is Always the Same: The Story of Risky Business | Self | 2008-09-16 |
| Movie | Music Within | Richard's Mom | 2007-01-05 |
| Movie | American Venus | Celia | 2007-09-08 |
| Series | John from Cincinnati | Cissy Yost | 2007-06-10 |
| Movie | Lords of Dogtown | Philaine | 2005-06-03 |
| Movie | Wedding Crashers | Mrs. Kroeger | 2005-07-13 |
| Movie | Raise Your Voice | Nina Fletcher | 2004-08-10 |
| Movie | Identity | Caroline Suzanne | 2003-04-25 |
| Movie | Salem Witch Trials | Elizabeth Parris | 2002-12-24 |
| Movie | Range of Motion | Lainey Berman | 2000-12-04 |
| Movie | The Right Temptation | Derian McCall | 2000-08-19 |
| Movie | Night Ride Home | Nora Mahler | 1999-02-07 |
| Movie | Thick as Thieves | Petrone | 1999-04-09 |
| Series | Law & Order: Special Victims Unit | Unknown | 1999-09-20 |
| Movie | Wicked Ways | Ruth Draper | 1999-12-21 |
| Movie | The Con | Barbara Beaton / Nancy Thoroughgood | 1998-03-04 |
| Series | The Shining | Wendy Torrance | 1997-04-27 |
| Movie | The Winner | Louise | 1996-09-13 |
| Series | The Outer Limits | Unknown | 1995-03-26 |
| Movie | Never Talk to Strangers | Dr. Sarah Alison Taylor | 1995-10-20 |
| Movie | Getting Out | Arlene Holsclaw | 1994-04-25 |
| Movie | Blind Side | Lynn Kaines | 1993-01-30 |
| Movie | Guilty as Sin | Jennifer Haines | 1993-06-04 |
| Movie | The Three Musketeers | Milady | 1993-11-11 |
| Movie | The Hand That Rocks the Cradle | Mrs. Mott / Peyton Flanders | 1992-01-10 |
| Series | An Inconvenient Woman | Flo | 1991-05-12 |
| Movie | Backdraft | Helen McCaffrey | 1991-05-24 |
| Movie | By Dawn's Early Light | Moreau | 1990-05-19 |
| Movie | Dealers | Anna Schuman | 1989-11-03 |
| Movie | Feds! | Ellis DeWitt | 1988-10-28 |
| Movie | And God Created Woman | Robin Shea | 1988-03-04 |
| Movie | Beauty and the Beast | Beauty | 1987-04-01 |
| Movie | The Murders in the Rue Morgue | Claire Dupin | 1986-12-07 |
| Series | Tall Tales & Legends | Rose 'Slew Foot Sue' Peasley | 1985-09-25 |
| Movie | The Slugger's Wife | Debby Palmer | 1985-03-29 |
| Movie | The Trip to Bountiful | Thelma | 1985-12-20 |
| Movie | Runaway Train | Sara | 1985-11-15 |
| Movie | Testament | Cathy Pitkin | 1983-11-04 |
| Movie | Risky Business | Lana | 1983-08-05 |
| Movie | One from the Heart | Understudy | 1982-02-11 |
| Series | NOVA | Narrator | 1974-03-03 |
| Movie | Laughter in the Dark | 1969-05-11 |