Suggestions by @alit14

Jonny Lee Miller

as Francis Madison Grimm in Cinder Spires

Score: -2

Josh Gad

as Kettle in Cinder Spires

Score: -1

Mahershala Ali

as Easterbrook in Cinder Spires

Score: +1

Emma Stone

as Predator (voice) in Cinder Spires

Score: +1

Jeff Bridges

as Journeyman in Cinder Spires

Score: -1

Colin O'Donoghue

as Francis Madison Grimm in Cinder Spires

Score: -2

Dafne Keen

as Isla Crown in Lightlark

Score: +1

Cate Blanchett

as Cleo in Lightlark

Score: +1

Jonny Lee Miller

as Barty Crouch Jr. in Harry Potter (HBO Max Series)

Score: -10

Mel B

as Madame Hooch in Harry Potter (HBO Max Series)

Score: -9

Danny DeVito

as Sir Cadogan in Harry Potter (HBO Max Series)

Score: -9

Kevin Kline

as Elphias Doge in Harry Potter (HBO Max Series)

Score: +1

John Goodman

as Mr. Mason in Harry Potter (HBO Max Series)

Score: -4

Giancarlo Esposito

as Lord Voldemort in Harry Potter (HBO Max Series)

Score: -23

Martin Short

as Dedulus Diggle in Harry Potter (HBO Max Series)

Score: +53

Ann Dowd

as Dolores Umbridge in Harry Potter (HBO Max Series)

Score: -7

Andy Serkis

as Kreacher in Harry Potter (HBO Max Series)

Score: +8

Idris Elba

as Mad-Eye Moody in Harry Potter (HBO Max Series)

Score: -6

Paul Bettany

as Professor Lupin in Harry Potter (HBO Max Series)

Score: -30

Tom Felton

as Lucius Malfoy in Harry Potter (HBO Max Series)

Score: +87