Suggestions by @fairilinaumbra

Ariana Grande

as petunia Dursley in Harry potter

Viggo Mortensen

as Rabastan Lestrange in Harry potter

Elijah Wood

as Rodolphus in Harry potter

Daniel Radcliffe

as Vernon Dursley in Harry potter

Gordon Ramsay

as Lee Jordan in Harry potter

Shah Rukh Khan

as Padma Patil in Harry potter

Travis Kelsey

as Firenze in Harry potter

Zendaya

as Pansy Parkinson in Harry potter

Anya Taylor-Joy

as Sybill Trelawney in Harry potter

Pauly Shore

as Vincent Crabbe in Harry potter

Timothée Chalamet

as Gregory Goyle in Harry potter

Oli London

as Cho Chang in Harry potter

Ariana Grande

as Kingsley Shacklebolt in Harry potter

Taylor Swift

as Molly Weasley in Harry potter

Mr. Beast

as Voldemort in Harry potter

George Clooney

as Dobby in Harry potter

Tom Cruise

as Mad Eye Moody in Harry potter

Nikocado Avocado

as Cedric Diggory in Harry potter

Nicholas Cage

as Snape in Harry potter

Hailee Steinfeld

as Hermione in Harry potter