Under the Sea: A Descendants Story

Under the Sea: A Descendants Story is an upcoming short-form special of Descendants. It will premiere on September 28, 2018. 

Synopsis
In the story, Mal emerges from the shadows of a mystical forest onto a dark coastline where she crosses paths with Dizzy.

Cast

 * Dove Cameron as Mal, daughter of Maleficent
 * China Anne McClain as Uma,daughter of Ursula
 * Anna Cathcart as Dizzy Tremaine, daughter of Drizella Tremaine
 * Thomas Doherty as Harry Hook, son of Captain Hook
 * Dylan Playfair as Gil, son of Gaston