Laura Prepon is an American actress and director, best known for her role as Donna Pinciotti on the television series That '70s Show. She was born on March 7, 1980, in Watchung, New Jersey. Prepon gained further fame for her portrayal of Alex Vause in the popular Netflix series Orange Is the New Black, which earned her critical acclaim. In addition to her acting career, Laura Prepon has also worked as a producer and director. She has appeared in various films and television shows, showcasing her versatility as an actress. Prepon is also known for her interest in health and wellness, having authored a book on nutrition.