What They Did After High School

Now in its fifth season, the CW series provided its young -- and largely inexperienced -- stars with an unparalleled launching pad.

Chace Crawford: Crawford, 26, has become a voice-over regular, most recently for the launch of the Fiat 500. In May, he'll star in Lionsgate's What to Expect When You're Expecting.

Blake Lively: In addition to an A-list love life, Lively, 24, landed roles in Green Lantern and The Town. Offscreen, she has emerged as a style icon with a Chanel campaign on her résumé.

Ed Westwick: Last year the British import, 24, landed a bit part in Clint Eastwood's awards contender J. Edgar. He now is preparing for a role in Carlo Carlei's Romeo and Juliet.

Leighton Meester: Meester's big-screen career took a sizable leap when the 25-year-old was cast opposite Gwyneth Paltrow in 2010's Country Strong and launched her own singing career.

Penn Badgley: A teen-drama veteran before Gossip Girl, Badgley, 25, is growing his résumé with indie darlings from Margin Call to Easy A.

Taylor Momsen: No longer a series regular, Momsen, 18, embarked on a controversial music career that frequently landed her in the press (for all the wrong reasons).