Suggestions by @starxpotter

Madison Bailey

as Roxanne Weasley in Harry Potter Children Fancast

Louis Partridge

as James Sirius Potter in Harry Potter Children Fancast

Sebastian Croft

as Ted Remus Lupin in Harry Potter Children Fancast

Sadie Sink

as Lily Luna Potter in Harry Potter Children Fancast

Sebastian Croft

as Barty Crouch Jr. in The Marauders

David Tennant

as Barty Crouch Jr. in The Marauders

Corinna Brown

as Dorcas Meadows in The Marauders

Grace Van Dien

as Marlene McKinnon in The Marauders

Kira Kosarin

as Andromeda Tonks in The Marauders

Emilia Jones

as Emmeline Vance in The Marauders

William Moseley

as Christopher Barley in The Marauders

Louis Partridge

as Christopher Barley in The Marauders

Tom Holland

as Christopher Barley in The Marauders

Kit Connor

as Christopher Barley in The Marauders

Maya Hawke

as Young Nymphadora Tonks in The Marauders

Emma Stone

as Young Nymphadora Tonks in The Marauders

Jenna Ortega

as Young Nymphadora Tonks in The Marauders

Emma Myers

as Young Nymphadora Tonks in The Marauders

Dove Cameron

as Young Nymphadora Tonks in The Marauders