Suggestions by @bennetlizz

Thomas Brodie-Sangster

as Remus Lupin in All the Young Dudes

Gia Kim

as Azula in Avatar: The Last Airbender (Netflix)

Amybeth McNulty

as Anna in Frozen Live Action

Anya Taylor-Joy

as Elsa in Frozen Live Action

Sang Heon Lee

as Zuko in Avatar: The Last Airbender (Netflix)

Sebastian Amoruso

as Jem Carstairs in The Infernal Devices

Daisy Edgar-Jones

as Andromeda Tonks in The Marauders

Finn Cole

as Lucius Malfoy in The Marauders

Patrick Gibson

as Peter Pettigrew in The Marauders

Ishaan Khatter

as James Potter in The Marauders

Benjamin Wadsworth

as James Potter in The Marauders

Mark McKenna

as Sirius Black in The Marauders