Zac Efron
The floppy hair, the twinkling blue eyes, the all-American boy style and the ability to hit high notes throughout the High School Musical franchise and Hairspray earned Zac Efron, who deferred his acceptance to USC after being picked to be Troy Bolton, a place in the teen heartthrob hall of fame. Before the fan mail and fame, came the hustle. He did local plays and singing lessons and in high school he drove to L.A. three days a week for auditions. He landed a few in the early 2000s (Firefly, ER, C.S.I., and The Guardian) before becoming a series regular