Those joining the cast in several fan-favorite roles include:

Kit Harington as Professor Lockhart;

Keira Knightley as Professor Umbridge;

Iwan Rheon as Professor Lupin;

Ruth Wilson as Bellatrix Lestrange;

Ambika Mod as Nymphadora Tonks;

Leo Woodall as Bill Weasley;

Simon Pegg as Arthur Weasley;

James McAvoy as Mad-Eye Moody;

Gemma Whelan as Professor Sprout;

Matt Berry as Sir Cadogan.