Suggestions by @nickienicks

Louis Partridge

as Viktor Krum in Harry Potter (HBO Max Series)

Cillian Murphy

as Dimitrov in Harry Potter (HBO Max Series)

Ana de Armas

as Clara Ivanova in Harry Potter (HBO Max Series)

Joaquin Phoenix

as Barry Ryan in Harry Potter (HBO Max Series)

Henry Cavill

as Connolly in Harry Potter (HBO Max Series)

Wes Bentley

as Morgan in Harry Potter (HBO Max Series)

Jack Black

as Mullet in Harry Potter (HBO Max Series)

Ben Barnes

as Troy in Harry Potter (HBO Max Series)

Tom Hardy

as Aidan Lynch in Harry Potter (HBO Max Series)

Kristen Bell

as Winky in Harry Potter (HBO Max Series)

Samara Weaving

as Narcissa Malfoy in Harry Potter (HBO Max Series)

Jim Carrey

as Barty Crouch in Harry Potter (HBO Max Series)

Chris Pine

as Ludo Bagman in Harry Potter (HBO Max Series)

Jensen Ackles

as Amos Diggory in Harry Potter (HBO Max Series)

Taron Egerton

as Charlie Weasley in Harry Potter (HBO Max Series)

Bill Skarsgård

as Bill Weasley in Harry Potter (HBO Max Series)

Viggo Mortensen

as Frank Bryce in Harry Potter (HBO Max Series)

Adam Driver

as Wormtail in Harry Potter (HBO Max Series)

Oscar Isaac

as Sirius Black in Harry Potter (HBO Max Series)

Robert De Niro

as Sirius Black in Harry Potter (HBO Max Series)