Suggestions by @rogers01

Jodie Comer

as Alecto Carrow in Harry Potter (HBO Max Series)

Barry Keoghan

as Amycus Carrow in Harry Potter (HBO Max Series)

Olivia Colman

as Hepzibah Smith in Harry Potter (HBO Max Series)

Emily Watson

as Hepzibah Smith in Harry Potter (HBO Max Series)

Mark Strong

as Marvolo Gaunt in Harry Potter (HBO Max Series)

Esmé Creed-Miles

as Merope Gaunt in Harry Potter (HBO Max Series)

Thomas Doherty

as Thomas Riddle Sr in Harry Potter (HBO Max Series)

Benedict Cumberbatch

as Rufus Scrimgeour in Harry Potter (HBO Max Series)

Nikolaj Coster-Waldau

as Rufus Scrimgeour in Harry Potter (HBO Max Series)

Tom Hollander

as Muggle Prime Minister in Harry Potter (HBO Max Series)

Ian McShane

as Frank Bryce in Harry Potter (HBO Max Series)

An Unknown Teenage Actor

as Hagrid (13) in Harry Potter (HBO Max Series)

An Unknown Teenage Actor

as Tom Riddle (16) in Harry Potter (HBO Max Series)

Charlie Murphy

as Bertha Jorkins in Harry Potter (HBO Max Series)

Jessie Buckley

as Professor Trelawney in Harry Potter (HBO Max Series)

Jessie Buckley

as Sybill Trelawney in Harry Potter (HBO Max Series)

Elizabeth Debicki

as Sybill Trelawney in Harry Potter (HBO Max Series)

Emma Stone

as Sybill Trelawney in Harry Potter (HBO Max Series)

Unknown French Teenage Actress

as Fleur Delacour in Harry Potter (HBO Max Series)

Unknown Bulgarian Teenage Actor

as Viktor Krum in Harry Potter (HBO Max Series)