Suggestions by @jonste101

Stephen Graham

as Mundungus Fletcher in Potter Boy(story private)

Score: +1

Will Poulter

as Firenze in Potter Boy(story private)

Score: +1

Janet McTeer

as Petunia Dursley in Potter Boy(story private)

Score: +1

Sophia Di Martino

as Rita Skeeter in Potter Boy(story private)

Score: +1

Olivia Colman

as Dolores Umbridge in Potter Boy(story private)

Score: +1

Rowan Atkinson

as Nearly Headless Nick in Potter Boy(story private)

Score: +1

Bill Skarsgård

as Kreacher in Potter Boy(story private)

Score: +1

Andy Serkis

as Dobby in Potter Boy(story private)

Score: +1

Adam Colborne

as Stan Shunpike in Potter Boy(story private)

Score: -1

Brian Cox

as Aberforth Dumbledore in Potter Boy(story private)

Score: +1

Idris Elba

as Kingsley Shacklebolt in Potter Boy(story private)

Score: -1

Aaron Taylor-Johnson

as Fenrir Greyback in Potter Boy(story private)

Score: +1

Alexander Skarsgård

as Ludo Bagman in Potter Boy(story private)

Score: +1

Daniel Brühl

as Barty Crouch Jr in Potter Boy(story private)

Score: +1

Mads Mikkelsen

as Barty Crouch Sr in Potter Boy(story private)

Score: +1

Phoebe Waller-Bridge

as Sybill Trelawney in Potter Boy(story private)

Score: +1