Laura Prepon is an American actress best known for her role as Donna Pinciotti on the television sitcom That '70s Show, appearing in 193 episodes, from 1998-2006.
She was also a regular cast member of the drama series October Road, from 2007-2008.
Prepon made a guest appearance on King of the Hill in 2004, and had a role in the unaired pilot of another television series, American Dad!.
She has had roles in the feature films Southlander: Diary of a Desperate Musician (2001); Slackers (2002); Lightning Bug (2004); The Pornographer: A Love Story (2004); The Chosen One (2006); Come Early Morning (2006); and the title role in Karla (2006).
Prepon was also an executive producer of E! Hollywood Hold'em and hosted the program's first game.
Prior to being cast on That '70s Show, she also spent some time as a model in Paris, Milan, and Brazil.
She has graced the cover of Maxim magazine, twice — once with her natural red hair and once with bleached blonde hair — and has done a TV advertisement for GAP clothing.