Juniper Montage

Juniper Montage is a human female and the main antagonist of Movie Magic and Mirror Magic.

Movie Magic
Twilight Sparkle and Rainbow Dash first meet Juniper on the set of the new Daring Do movie. She introduces herself as the niece of the director, Canter Zoom, as well as his personal gofer, often sent to do menial tasks as getting him coffee. She is also the keeper of the keys around the movie studio. She is also a huge fan of A.K. Yearling, and met her once and got her to sign her copy of the latest book. She also wanted her uncle to cast her as Daring Do herself, but her uncle passed her over for big-name actress Chestnut Magnifico.

It is later revealed that she is the mysterious figure in the hooded cloak responsible for all the mishaps in the studio including the destruction of the volcano set and the theft of the props representing the relics. She reveals she did these out of bitterness for not being cast as Daring and her hatred of Magnifico. While her uncle forgives her, he asks security to take her off the premises and confiscates her keys. Before she leaves, she looks back at the Equestria Girls in anger.

Mirror Magic
Sometime after the events of Movie Magic, Juniper has a job at the movie theater. She somehow gets her hands on a hand mirror enchanted with Equestrian magic, which is able to change her reflection and transport things into a void between Equestria and the human world. She then sends the Equestria Girls into the void.