Zac Efron - Troy Bolton
Vanessa Anne Hudgens - Gabriella Montez
Ashley Tisdale - Sharpay Evans
Lucas Grabeel - Ryan Evans
Alyson Reed - Ms. Darbus
Corbin Bleu - Chad Danforth
Monique Coleman - Taylor McKessie
Olesya Rulin - Kelsi Nielsen
Chris Warren Jr. - Zeke Baylor
Bart Johnson - Coach Jack Bolton
Ryne Sanborn - Jason Cross
Socorro Herrera - Mrs. Montez
Joey Miyashima - Principal Matsui
Dutch Whitlock - Skater Dude #1
Ryan Templeman - Skater Dude #2