Emily arrives in Miami with aspirations to become a professional dancer. She sparks with Sean, the leader of a dance crew known as "The Mob" for their flash mobs whose neighborhood is threatened by Emily's father's development plans. As Emily bands together with Sean and The MOB to use their performance mobs into protest mobs.
- Kathryn McCormick as Emily, a gifted dancer and the protagonist.
- Ryan Guzman as Sean, Emily's love interest and the deuteragonist
- Misha Gabriel as Eddy, Co-Leader of "The Mob"
- Stephen "tWitch" Boss as Jason
- Adam G. Sevani as Moose
- Chadd "Madd Chadd" Smith as Vladd
- Tommy Dewey as Tripp
- Cleopatra Coleman as Penelope
- Megan Batoon as Claire
- Phillip "Pacman" Chbeeb
- Justin "Jet Li" Valles
- Mari Koda as Kido
- Claudio Pinto as Francisco