Suggestions by @miataylorsvertion

Caleb McLaughlin

as Fred II Weasley in Harry Potter Next Gen FanCast

Walker Scobell

as Hugo Weasley in Harry Potter Next Gen FanCast

Millie Bobby Brown

as Rose Weasley in Harry Potter Next Gen FanCast

Sadie Sink

as Lily Luna Potter in Harry Potter Next Gen FanCast

Rian McCririck

as Albus Severus Potter in Harry Potter Next Gen FanCast

Joshua Bassett

as James Sirius Potter in Harry Potter Next Gen FanCast