Randy Pearson (Josh Meyers), who was introduced in the eighth and final season of the series, became Donna's third love interest after Grace left the series.
Following That '70s Show, Prepon worked mainly in television.
She appeared in the film adaptation of Paula Hawkins's novel The Girl on the Train.
Prepon is perhaps best known for starring as Donna Pinciotti on the Fox sitcom That '70s Show from 1998 to 2006.
Donna became the girlfriend and next-door neighbor of Eric Forman (Topher Grace).
Her first notable film role came in 2004, with the dark drama Lightning Bug with Bret Harrison, Kevin Gage and Ashley Laurence.
Branching into other arenas than acting, Prepon also served as executive producer of the film.
Laura Prepon got grilled on a tough topic, and didn't hedge her answer when asked who she enjoyed kissing more -- Topher Grace from "That '70s Show" or Taylor Schilling from 'Orange Is the New Black.' The "OITNB' star was on the "Todd & Jayde in the Morning" show on 95.5 in NYC when they raised the issue.
It's the kind of question actors normally dance around answering because no one wants to burn a bridge -- but Laura was awesome.
Laura Helene Prepon (born March 7, 1980) is an American actress, producer, and author.
She is known for her role as Donna Pinciotti in all eight seasons of the Fox sitcom That '70s Show (1998–2006), and for her role as Alex Vause in the Netflix original comedy-drama series Orange Is the New Black (2013–present).