Lauren Alice Koslow (born March 9, 1953) is an American actress, best known for her long-running portrayal of Kate Roberts on the NBC dramatic serial Days of Our Lives, which she has played continuously since 1996. She previously appeared in the soaps The Bold and the Beautiful and The Young and the Restless.
Born in Boston, Koslow's mother was a docent, and was raised with a strong love for colonial life along with her sister, Linda and her brother, Donald. Koslow was educated at the University of Massachusetts Amherst and Virginia Polytechnic Institute & State University, graduating with a degree in theatre and costume design. She is maintaining a family on her ranch in Northridge, California in the San Fernando Valley with her husband, make up artist Nick Schillace, and their 3 children. They have an ever-increasing menagerie of animals, including a macaw, a gift from Tori Spelling.
She began her acting career with touring theatre work in such productions as Cat on a Hot Tin Roof and Dial M for Murder.
Turning to television in the mid-1980s Koslow landed the role of Lindsay Wells on the hit CBS soap opera The Young and the Restless which she played from 1984-1986. She was then asked by the serial's creators William J. Bell and wife Lee Phillip Bell to become an original cast member on the duo's new sister soap The Bold and the Beautiful which debuted in the spring of 1987. She portrayed fashion designer "Margo Lynley" from the serial's inception until 1992 when she left to begin a family.
Through the early 1990s Koslow busied herself with guest starring roles in several primetime television series including Silk Stalkings and The Nanny. However, she was lured back to daytime in 1996 in order to replace actress Deborah Adair who left the NBC soap Days of Our Lives to, ironically, spend more time with her family.
In the role of vindictive call girl turned corporate executive Kate Roberts, Koslow flourished on Days of Our Lives quickly becoming a woman fans 'love to hate'. The character is known for her wickedness and deception, specifically her ongoing war with fellow Salem resident Sami Brady (Alison Sweeney), the former ex-fiance of Kate's son Austin (Austin Peck) and ex-fiance/current ex-wife of her son Lucas (Bryan Dattilo), and numerous affairs and romantic entanglements. Other notable character conflicts include Kate's mysterious past with series villain Stefano DiMera (Joseph Mascolo), her rocky marriage with mogul Victor Kiriakis (John Aniston), and her rivalries with crazed socialite Vivian Alamain (Louise Sorel) and Nicole Walker DiMera. Kate is the mother of Lucas Horton, Rex Brady, Cassie Brady, Philip Kiriakis, Billie Reed, and Austin Reed.
Presently, she remains a cast member of Days of Our Lives.