Suggestions by @mr_blue_sky

Sonic the Hedgehog (SatAM)

as "The Fastest Thing Alive!" in Codename: Kids Next Door: Operation S.E.Q.U.E.L

Score: +3

Spoiler

as "The Fastest Thing Alive!" in Codename: Kids Next Door: Operation S.E.Q.U.E.L

Score: +4

The Legend of Zelda (Franchise)

as Ridley Scott in If this Director directed...

Score: +3

Thom Yorke

as Music Meister in New Voice Actors to Play Marvel and DC Characters

Score: +1

Rob Paulsen

as Fastback in New Voice Actors to Play Marvel and DC Characters

Score: +1

Oliver Masucci

as Adam T. Hauser in The Greatest American Hero: Believe It Or Not

Score: +1

Val Kilmer

as Venom in What Voices Do You Hear When You Read Comics? Fan Cast

Score: +1

Mel Brooks

as Captain Carrot and His Amazing Zoo Crew! in Which projects should inspire adaptations of these comics

Score: +2

Zucker, Abrahams and Zucker

as Captain Carrot and His Amazing Zoo Crew! in Which projects should inspire adaptations of these comics

Score: +2

Zucker, Abrahams and Zucker

as Inspirations in Captain Carrot & His Amazing Zoo Crew!

Score: +2

Mel Brooks

as Inspirations in Captain Carrot & His Amazing Zoo Crew!

Score: +2

Brent Spiner

as Dr. Starline in IDW's Sonic the Hedgehog animated universe

Score: +1

Anthony De Longis

as Kano in Mortal Kombat (1980's)

Score: +1

Michelle Yeoh

as Kitana in Mortal Kombat (1980's)

Score: +1

Carter Wong

as Raiden in Mortal Kombat (1980's)

Score: +1

Bolo Yeung

as Kung Lao in Mortal Kombat (1980's)

Score: +1

Sho Kosugi

as Liu Kang in Mortal Kombat (1980's)

Score: +1

Jackie Chan

as Scorpion in Mortal Kombat (1980's)

Score: +1

Koji Yakusho

as Sub-Zero in Mortal Kombat (1980's)

Score: +1

Bruce Campbell

as Vector the Crocodile in Sonic Cast of the 1990s - 2007

Score: +2