A popular high school athlete and an academically gifted girl get roles in the school musical and develop a friendship that threatens East High's social order.
Troy Bolton
Zac Efron
Gabriella Montez
Vanessa Hudgens
Sharpay Evans
Ashley French
Ryan Evans
Lucas Grabeel
Chad Danforth
Corbin Bleu
Taylor McKessie
Monique Coleman
Coach Jack Bolton
Bart Johnson
Ms. Darbus
Alyson Reed
Zeke Baylor
Chris Warren
Kelsi Nielsen
Olesya Rulin
Principal Dave Matsui
Joey Miyashima
Skater Dude #2
Ryan Templeman
Chem Teacher
Irene Santiago
Lucille Bolton
Leslie Wing
Ms. Falstaff
Joyce Cohen
Susan
Anne Kathryn Parma
Basketball Player Dancer
Charles Klapow
Basketball Player Dancer
Brad Tobler
Cheerleader Dancer
Allison Holker
Cheerleader Dancer
Britt Stewart
Brainiac Dancer
Mollee Gray
Braniac Dancer
Michelle Parker
Brainiac Dancer
Thayne Jasperson
Skaterdude Dancer
Shawn Carter
Skaterdude Dancer
Malinda Money
Skater Dude #1
Dutch Whitlock
Jason Cross
Ryne Sanborn
Lisa Montez
Socorro Herrera
Martha Cox
Kaycee Stroh
M.C.
Brett Yoder
Girl #1
Sarah K. Aezer
Girl #2
Amanda Garrett
Alan
Nick Whitaker
Cyndra
Falon Grace
Weird Kid #1
Sami Roe
Weird Kid #2
Melissa Hildebrant
Basketball Player Dancer
David Huff
Basketball Player Dancer
Jared Murillo
Basketball Player Dancer
Roger Malaga
Basketball Player Dancer
Todd Michael Schwartzman
Basketball Player Dancer
Da' Jon Lang
Cheerleader Dancer
Tina Pituckul
Cheerleader Dancer
Raquel Goodsell
Cheerleader Dancer
Kelli Baker
Cheerelader Dancer
Bayli Baker
Cheerleader Dancer
Jessie Tan
Cheerleader Dancer
Breanna Phillips
Brainiac Dancer
Skyler Holman
Brainiac Dancer
Andrew Winston
Brainiac Dancer
Afton Delgrosso
Brainiac Dancer
Falisha Fehoko
Skater Dude Dancer
Eldon Johnson
Skater Dude Dancer
Josh Murillo
Skater Dude Dancer
Sabra Johnson
Troy Bolton (singing voice) (uncredited)
Drew Seeley
Cheerleader Dancer (uncredited)
Tisha Vaculin
Student (uncredited)
Joseph Paul Branca
Basketball Championship Announcer (uncredited)
Joe Cappelletti
Basketball Player Dancer (uncredited)
Matthew Miles Carter
Cheerleader Dancer (uncredited)
Kara Dupell
Student (uncredited)
Jason Fullmer
Chapstick (uncredited)
Joe Jurisic
Student (uncredited)
Bryson Kuan
Cafe Dancer (uncredited)
Camille Lynne Matthews
Jock (uncredited)
Chase Ramsey
Referee (uncredited)
Stephen Rippey
Basketball Player Dancer
Carleton Bluford