The standard edition of the film closes with Lemonade Mouth performing "Breakthrough" at Madison Square Garden, with Scott as their new additional guitarist. The extended edition includes an interview with Moxie Morris on "All Things Musical", in which Mo and Scott's relationship is nearly exposed by Moxie in front of Mo's father, but is stopped by Olivia, who says that she and Wen are dating. The band performs "Livin On A High Wire".

Cast[edit]

• Bridgit Mendler as Olivia White, the lead singer of the band^[6]
• Adam Hicks as Wendell "Wen" Gifford, the pianist and also a rapper of the band^[6]
• Hayley Kiyoko as Stella Yamada, the lead guitarist of the band^[6]
• Naomi Scott as Mohini "Mo" Banjaree, the bassist of the band^[6]
• Blake Michael as Charles "Charlie" Delgado, the drummer of the band^[6]
• Nick Roux as Scott Pickett, Mo's boyfriend^[6]
• Chris Brochu as Ray Beech^[6]
• Tisha Campbell-Martin as Miss Jenny Reznick^[6]
• Christopher McDonald as Principal Stanley Brenigan^[6]
• Scott Takeda as Mr. Yamada
• Ariana Smythe as Sydney
• Judith Rane as Brenda
• Isaac Kappy as Mel
• Ryan Montano as Tommy Delgado
• Lauren Poole as Moxie Morris
• Bob Jesser as Mr. Gifford
• Leedy Corbin as Georgie Gifford
• Lance Capaldi as Ticket Taker
• Shishir Kurup as Mr. Banjaree, Mo's dad

Author Mark Peter Hughes makes a cameo appearance as an extra dressed as a bee at the Halloween Bash