Suggestions by @aidanbillingham1

Nigel Lindsay

as Mundungus Fletcher in Harry Potter (HBO Max Series)

+3-6Score: -3

Ed Westwick

as Gilderoy Lockhart in Harry Potter (HBO Max Series)

+2-12Score: -10

Paul Kaye

as Peeves the Poltergeist in Harry Potter (HBO Max Series)

+11-6Score: +5

Jemma Redgrave

as Aunt Petunia in Harry Potter (HBO Max Series)

+4-27Score: -23

Tamsin Greig

as Aunt Petunia in Harry Potter (HBO Max Series)

+14-23Score: -9