| The lead stars characters in the movie High | | | | that she might end up playing understudy for the |
| School Musical is Troy Bolton, East High's star | | | | lead role to the new girl Gabriela. |
| athlete and Gabriela Montez, the Math Whiz who | | | | Sharpay's talented brother Ryan is played by |
| just transferred to East High. At first look, the | | | | Lucas Grabeel. He helps his sister work out |
| characters can not be any more different from | | | | schemes to prevent the jock Troy Bolton and |
| each other. Bolton, played by teen heartthrob Zac | | | | Math whiz Gabriela from landing the lead roles in |
| Efron is the basketball team's captain and is one | | | | Twinkle Town. |
| of the most popular personalities in school. He is | | | | Sharpay and Ryan also stage elaborate |
| well loved and is expected to lead his team- the | | | | performances that really make their drama |
| East High Wildcats to victory in the basketball | | | | teacher Ms. Darbus proud. Add to this the fact |
| championships. | | | | that Ms. Darbus is cautious about the real |
| On other hand Gabriela Montes, played by | | | | intentions Troy for auditioning. |
| eighteen year old Vanessa Ann Hudgens, is a | | | | Troy has a best friend named Chad played by |
| Math whiz and is the new girl in school. She sees | | | | Corbin Bleu. Corbin is also a Disney star who has |
| this as the perfect opportunity to try new things | | | | starred in his own movie about jump rope teams- |
| and not just focus on Math which has always | | | | Jump In!. Gabriela on the other hand finds a |
| been her greatest strength. | | | | dependable friend in Taylor McKessie played by |
| The two characters meet during winter break | | | | actress Monique Coleman. |
| without realizing they will end up being | | | | Another character that plays an important role in |
| schoolmates when classes resume. The two were | | | | Troy and Gabriela landing the much coveted lead |
| forced to sing together during karaoke night at a | | | | roles in Twinkle Town is song-writer & pianist Kelsi |
| ski resort and that's when they realize they both | | | | Nielsen. Kelsi created all the music for the musical |
| enjoy singing. | | | | and helps Troy and Gabriela practice the songs. |
| When they audition for East High's Winter Musical- | | | | Kelsi Nielsen is played by actress Olesya Rulin. |
| Twinkle Town they end up being called back for | | | | Other characters in the movie are: Zeke, the |
| the final auditions for the lead roles against the | | | | pastry-making basketball player played by Chris |
| siblings Sharpay and Ryan Evans. The two teens | | | | Warren Jr.; Coach Jack Bolton, Troy Bolton's |
| have always starred in the school's productions. | | | | father and the coach of the basketball team |
| Sharpay Evans is the school's drama queen. | | | | played by Bart Johnson; Jason, a basketball player |
| Played by Ashley Tisdale, the Disney star who | | | | played by Ryne Sanborn; Mrs. Montez played by |
| also has a regular role in the popular TV shoe The | | | | Socorro Herrera; Principal Matsi played by Joey |
| Suite Life of Zach & Cody, Sharpay is unhappy | | | | Miyashima; and other supporting casts. |