The Golden Trio

Neville Longbottom

Played by Mathew Lewis

Ginny Weasley

Played by Bonnie Wright

Luna Lovegood

Played by Evanna Lynch

The Silver Trio

Harry Potter 

Played by Daniel Radcliff

Ron Weasley

Played by Rupert Grint

Hermione Granger

Played by Emma Watson

Other Characters

Maddy Chang

Played by Gemma Chan

Draco Malfoy

Played by Tom Felton 

The Weasley Twins

Played by James and Oliver Phelp 

Colin Creevy

Played by Dylan Kingwell

Demelza Robins

Played by Malina Weissman 

If someone new is added, it will be added here on the cast list