Danielle Nicolet (born November 24, 1973) is an American actress, best known for her roles on television.
Nicolet was born Danielle Diggs in Ashtabula, Ohio. Nicolet began acting in the early 1990s, appearing in a recurring role on the ABC sitcom Family Matters. In 1996, she landed the role of Caryn on the NBC sitcom 3rd Rock from the Sun, a role she would reprise through 2001. In 2005, Nicolet starred in the short-lived UPN sitcom Second Time Around. Entertainment Weekly named her the network's "breakout star." in review. After the series was canceled, she co-starred on the TNT medical drama, Heartland. That following year, Nicolet had regular role in the USA Network comedy-drama, The Starter Wife starring Debra Messing, the series also was canceled after one season. Nicolet has also guest starred on episodes of Stargate SG-1, Angel, The Bernie Mac Show, All of Us, CSI: Crime Scene Investigation, and Warehouse 13.