18 Big Stars Who Showed Up On 'Law & Order' Before They Were Famous

List Rules
Vote up the stars you were retroactively surprised to see on 'Law & Order.'

Over the course of Law & Order’s 20-year run, the NBC series became a breeding ground for up-and-coming actors. From Claire Danes to Kerry Washington to Adam Driver, you may just be surprised to see which brand-name actors appeared as guest stars on the NBC procedural before they were famous.

Because Law & Order featured a new case every week, the New York City-based police procedural required a lot of different actors to fill roles. If you were an actor who lived in New York City from 1990-2010, it's a fair bet you were able to make rent at least partly because of a guest spot on Dick Wolf’s popular series.