Brec Bassinger
as 
Analia Tremaine

.....

Anna Cathcart
as
Dizzy Tremaine

.....

Richard Madden
as
Prince Charming

.....

Lily James
as
Cinderella

.....

Sabrina Carpenter
as
Charleigh Charming

.....

Holliday Grainger
as
Anastasia Tremaine

.....

Cate Blanchett
as
Lady Tremaine

.....

Tom Holland
as
Anthony Tremaine 

.....

(Also, I know that Cate Blanchett wasn't Lady Tremaine in the descendants movies, but for the book she is. I went by the movie Cinderella so Cate Blanchett as Lady Tremaine, Richard Madden as Prince Charming, Lily James as Cinderella, Holliday Granger as Anastasia those are from the Cinderella cast. I just wanted to add them in this because I'm a huge fan of the Cinderella movie, so I wanted to put them in here. Thank you, happy reading!!)