Played by: ZAC EFRON

(Not appearing on the concert tour)

The 411: Mostly recently filming next summer’s big-screen musical "Hairspray"; started singing lessons when he was 11 and soon appeared in various stage productions; had guest spots on "Firefly" (2002), "ER" (1994), "The Guardian" (2001) and "Summerland" (2004).

Faves: Sports include golf, skiing, rock-climbing and snowboarding.

Fun to know: "High School Musical" was so popular he had to change his phone number; his prized possession is an autographed-baseball collection; his duet with co-star Vanessa Anne Hudgens, "Breaking Free," made the fastest climb in the history of the Billboard Hot 100, leaping from 86 to 4 in one week last February.

BF in real life: "High School Musical" co-star Ashley Tisdale.

Tidbit: He’s fixing up two cars, a DeLorean and a ’65 Mustang convertible, both hand-me-downs from his grandfather.