Suggestions by @harrisonlittrell

Julie Andrews

as Grandma Josephine in Charlie and the Chocolate Factory

Score: +2

John Cleese

as Grandpa George in Charlie and the Chocolate Factory

Score: +2

Ewan McGregor

as Adult Charlie in Charlie and the Chocolate Factory

Score: +1

James McAvoy

as Adult Charlie in Charlie and the Chocolate Factory

Score: +2

Ralph Fiennes

as Arthur Slugworth in Charlie and the Chocolate Factory

Score: +2

Craig McCracken

as Director in Charlie and the Chocolate Factory

Score: +2

Tara Strong

as Mrs. Charlotte Bucket in Charlie and the Chocolate Factory

Score: +2

Tony Hale

as Mr. Sam Beauregarde in Charlie and the Chocolate Factory

Score: +2

Allison Janney

as Mrs. Dolores Teavee in Charlie and the Chocolate Factory

Score: +2

Imelda Staunton

as Grandma Georgina in Charlie and the Chocolate Factory

Score: +2

Andy Serkis

as Grandpa Joe in Charlie and the Chocolate Factory

Score: +2

Jim Carrey

as Willy Wonka in Charlie and the Chocolate Factory

Score: +2

Iñaki Godoy

as Emperor Kuzco in The Emperor's New Groove (Live-Action)

Score: 0

Dana Snyder

as Mr. Mxyzptlk in DC League of Super-Pets 2

Score: +2

Ben Schwartz

as Squeak in Garfield

Score: 0

Wolfgang Schaeffer

as Nermal in Garfield

Score: 0

Bobby Moynihan

as Doc Boy Arbuckle in Garfield

Score: +2

Elizabeth Banks

as Arlene in Garfield

Score: 0

Bowen Yang

as Nolan in Garfield

Score: +2

Brett Goldstein

as Roland in Garfield

Score: +2