GLUMCI
- Helen Mirren
Self - Host - Luke Youngblood
Self - Special Guest Announcer - Tom Felton
Self - Special Guest - Nicole Flamel
Slytherin Audience Cast - Matthew Lewis
Self - Special Guest - Simon Fisher-Becker
Self - Special Guest - Pete Davidson
Self - Special Guest - Shirley Henderson
Self - Special Guest - Dan Fogler
Self - Special Guest - Jay Leno
Self - Special Guest - Harry Taylor
Self - Special Guest - Adrian Dev
Slytherin - Annie Bennett
Ravenclaw Team Player - Michael Joseph Pierce
Harry Taylor Look-Alike #1 - Steve Testa
Harry Taylor Look-Alike #3