Katherine LaNasa (born December 1, 1966) is an American actress, former ballet dancer and choreographer. She starred in films Jayne Mansfield's Car, The Campaign, and The Frozen Ground. On television, LaNasa had a leading role in the NBC sitcom Three Sisters (2001–2002), appeared in recurring roles on Judging Amy, Two and a Half Men, Big Love and Longmire, and starred in the short-lived dramas Love Monkey (2006), Deception (2013), Satisfaction (2014–15) and Imposters (2017–18). In 2020, LaNasa portrayed Gloria Grandbilt in the musical dramedy series Katy Keene.