Sharpay Evans
Peyton Leverett
Amber Lee Adams
Roger Elliston
Gill
Neal
Mr. Evans
Mrs. Evans
Jerry Taylor
Stage Manager
Lupe
Tiffani
Dina
Kelly
Marjorie
Judith / Nell
Tim
Mr. Gonzalez
Mrs. Gonzalez
Sound Engineer
Butchy
Girl 1
Singer Girl
Trevor
Card Player
Shine Dancer / Finale Dancer
Dancer
Lead Dancer
Dancer (as Judy Kovaks)
Dancer (as Charlie Seminerio)
Ryan Evans (Disney Channel version only)
Carriage driver
Statue of Liberty
Manley Boi 'Wildcat' Ortega (archive footage)
Pianist (uncredited)
Poker Player (uncredited)
Patron #1 (uncredited)
Roger Elliston (singing voice) (uncredited)
Patron #2 (uncredited)
Company Dancer (uncredited)
Party Goer (uncredited)