Suggestions by @alexwinder

Natalie Dormer

as Belatrix Lenstrange in Harry Potter (HBO Max Series)

Jerome Flynn

as Mad-Eye Moody in Harry Potter (HBO Max Series)

Bill Paterson

as Cornelius Fudge in Harry Potter (HBO Max Series)

Aimee Lou Wood

as Moaning Myrtle in Harry Potter (HBO Max Series)

Hannah Waddingham

as Madame Hooch in Harry Potter (HBO Max Series)

Phoebe Waller-Bridge

as Professor Sprout in Harry Potter (HBO Max Series)

Alfie Allen

as Professor Snape in Harry Potter (HBO Max Series)

Lupita Nyong'o

as The Sorting Hat in Harry Potter (HBO Max Series)

Matt Berry

as The Fat Friar in Harry Potter (HBO Max Series)

Simon Pegg

as Garrick Olivander in Harry Potter (HBO Max Series)

Cillian Murphy

as Professor Quirrell in Harry Potter (HBO Max Series)

Simon Pegg

as Professor Dumbledore in Harry Potter (HBO Max Series)