Suggestions by @dstonemeier

Graham McTavish

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

Billie Piper

as Narcissa Malfoy in Harry Potter (HBO Max Series)

Stellan Skarsgård

as Barty Crouch in Harry Potter (HBO Max Series)

Edward Holcroft

as Wormtail in Harry Potter (HBO Max Series)

Jamie Dornan

as Professor Lupin in Harry Potter (HBO Max Series)

John Lithgow

as Cornelius Fudge in Harry Potter (HBO Max Series)

Mia Goth

as Moaning Myrtle in Harry Potter (HBO Max Series)

Tom Ellis

as Gilderoy Lockhart in Harry Potter (HBO Max Series)

Aidan Gillen

as Lucius Malfoy in Harry Potter (HBO Max Series)

Simon Pegg

as Arthur Weasley in Harry Potter (HBO Max Series)

Kaya Scodelario

as Lily Potter in Harry Potter (HBO Max Series)

Will Poulter

as James Potter in Harry Potter (HBO Max Series)

Alex Kingston

as Madame Hooch in Harry Potter (HBO Max Series)

Bill Nighy

as Argus Filch in Harry Potter (HBO Max Series)

Ricky Gervais

as Peeves the Poltergeist in Harry Potter (HBO Max Series)

Emily Blunt

as Molly Weasley in Harry Potter (HBO Max Series)

Paul McGann

as Garrick Olivander in Harry Potter (HBO Max Series)

Andrew Scott

as Griphook in Harry Potter (HBO Max Series)

Robbie Kay

as Professor Quirrell in Harry Potter (HBO Max Series)

Alfred Molina

as Hagrid in Harry Potter (HBO Max Series)