11 Teen Drama Icons Who Played Villains on Procedural Dramas (PHOTOS)

Meredith Jacobs

Remember the stars of classic teen dramas like Party of FiveDawson's CreekBeverly Hills, 90210, The O.C., and Buffy the Vampire Slayer?

Well, those actors went on to play, in most cases, very different characters from those iconic roles on procedural dramas like Law & Order: SVUCriminal MindsCSI (and its spinoffs), and NCIS. We're taking a look back at some of those villainous turns for stars from teen dramas from the '90s and early 2000s, including James Van Der Beek, Kerr Smith, James Marsters, Luke Perry, and Scott Wolf.

Ranking the Most Horrific Major UnSubs on 'Criminal Minds' (PHOTOS)

Ranking the Most Horrific Major UnSubs on 'Criminal Minds' (PHOTOS)

From Mr. Scratch to Tobias Hankel, from Foyet to The Replicator, we can't forget these serial killers.

Click through the gallery above to see the teen drama and villainous roles those stars and others played in procedural dramas (and, in one case, a dramedy).