Zac Efron

Troy Bolton

Vanessa Hudgens

Gabriella Montez

Ashley Tisdale

Sharpay Evans

Lucas Grabeel

Ryan Evans

Corbin Bleu

Chad Danforth

Monique Coleman

Taylor McKessie

Bart Johnson

Coach Jack Bolton

Alyson Reed

Ms. Darbus

Chris Warren

Zeke Baylor

Olesya Rulin

Kelsi Nielsen

Joey Miyashima

Principal Dave Matsui

Ryan Templeman

Skater Dude #2

Irene Santiago

Chem Teacher

Leslie Wing

Lucille Bolton

Joyce Cohen

Ms. Falstaff

Anne Kathryn Parma

Susan

Charles Klapow

Basketball Player Dancer

Brad Tobler

Basketball Player Dancer

Allison Holker

Cheerleader Dancer

Britt Stewart

Cheerleader Dancer

Mollee Gray

Brainiac Dancer

Michelle Parker

Braniac Dancer

Thayne Jasperson

Brainiac Dancer

Shawn Carter

Skaterdude Dancer

Malinda Money

Skaterdude Dancer

Ryne Sanborn

Jason Cross

Kaycee Stroh

Martha Cox

Sarah K. Aezer

Girl #1

Jared Murillo

Basketball Player Dancer

Roger Malaga

Basketball Player Dancer

Kelli Baker

Cheerleader Dancer

Bayli Baker

Cheerelader Dancer

Andrew Winston

Brainiac Dancer

Falisha Fehoko

Brainiac Dancer

Drew Seeley

Troy Bolton (singing voice) (uncredited)

Joe Cappelletti

Basketball Championship Announcer (uncredited)

Chase Ramsey

Jock (uncredited)

Carleton Bluford

Basketball Player Dancer