Suggestions by @siobhanfitzgerald

Sean Schemmel

as Skarloey in Skarloey storms through

Score: +1

Lacey Chabert

as Emily in Edward Strikes Out

Score: +4

Christopher Lloyd

as Professor E gadd in Luigi’s mansion (Nintendo cinematic universe)

Score: +1

Matt Berry

as King boo in Luigi’s mansion (Nintendo cinematic universe)

Score: 0

Jack McBrayer

as Toad in Luigi’s mansion (Nintendo cinematic universe)

Score: +1

Danny DeVito

as Mario in Luigi’s mansion (Nintendo cinematic universe)

Score: +1

Charlie Day

as Luigi in Luigi’s mansion (Nintendo cinematic universe)

Score: +2

John C. Reilly

as King Dedede in Super Smash Bros

Score: +2

Shigeru Miyamoto and Chris Meledandri

as Producer in Mario

Score: +1

Matthew Fogel

as Writer in Mario

Score: +1

Aaron Horvath and Michael Jelenic

as Director in Mario

Score: +1

Danny Elfman

as Composer in Mario

Score: +1

Tim Curry

as King k rool in Mario

Score: +1

Dwayne Johnson

as Funky kong in Mario

Score: +1

Hynden Walch

as Dixie kong in Mario

Score: +1

Kevin Hart

as Diddy kong in Mario

Score: +1

Kevin Michael Richardson

as Kamek in Super Mario Bros.

Score: +1

Hugh Laurie

as Toadsworth in Super Mario Bros.

Score: +1

Makiko Ohmoto

as Kirby in Super Smash Bros animated movie

Score: +1