Suggestions by @matthewwilliams1

Aidan Vissers

as Xavier Riddle in Xavier Riddle and the Secret Movie: I am Madam President

Score: +2

Steve Buscemi

as Science Bee in Bee Movie 2

Score: +2

Michael Keaton

as Science Bee in Bee Movie 2

Score: +2

Jim Carrey

as Science Bee in Bee Movie 2

Score: +2

Bryan Cranston

as Science Bee in Bee Movie 2

Score: +2

Gary Oldman

as Science Bee in Bee Movie 2

Score: +2

Billy Crystal

as Talking Tom in The Talking Tom Movie

Score: 0

John Lasseter

as Director in The Talking Tom Movie

Score: +1

Colin Hanks

as Director in The Talking Tom Movie

Score: -1