In the film Lemonade Mouth , Olivia White is played by Jessica Sanchez , Mohini Banjaree by Elise Testone , Charles Delgado by DeAndre Brackensick , Stella Yamada by Skylar Laine , Wendell Gifford by Colton Dixon , and Ms. Reznik by Renee Taylor .
Five high school freshmen : Olivia White ( Bridgit Mendler ) , Mohini `` Mo '' Banjaree ( Naomi Scott ) , Charles `` Charlie '' Delgado ( Blake Michael ) , Stella Yamada ( Hayley Kiyoko ) , and Wendell `` Wen '' Gifford ( Adam Hicks ) all meet in detention , where the supervisor and music teacher Ms. Reznik ( Tisha Campbell-Martin ) rants over the school principal Brenigan ( Christopher McDonald ) having moved all extracurricular activities to the school basement to make room for a new gymnasium .
Lemonade Mouth -LRB-film-RRB-