Suggestions by @sam2020

John Cleese

as Count Dooku in Star Wars: The Clone Wars

Score: 0

Ashley Johnson

as Gwen Tennyson in Ben 10: Alien Force - (OV style)

Score: +2

Greg Cipes

as Kevin Levin in Ben 10: Alien Force - (OV style)

Score: +1

Daniel Day-Lewis

as Floyd Turbeaux in The Iron Giant

Score: +1

Bill Nighy

as Floyd Turbeaux in The Iron Giant

Score: +1

Ian McKellen

as Floyd Turbeaux in The Iron Giant

Score: +1

Robert De Niro

as Floyd Turbeaux in The Iron Giant

Score: +1

Brian Baumgartner

as Fisherman in The Iron Giant

Score: +1

Ariana Greenblatt

as Nail Biter in The Iron Giant

Score: +1

Yuri Lowenthal

as Ben Tennyson in Ben 10: Alien Force - (OV style)

Score: 0

Wyatt Oleff

as Jim Hawkins in Treasure Planet

Score: -9

Spencer Fox

as Anakin Skywalker in Star Wars: The Phantom Menace

Score: +1

Ruby LaRocca

as Sai Sircu in Star Wars: The Clone Wars

Score: +1

Scarlett Johansson

as Ros Lai in Star Wars: The Clone Wars

Score: +1

Grace Dove

as Elena Validus in Ben 10: Alien Swarm (Animated version)

Score: +1

Avan Jogia

as Kevin Levin in Ben 10: Alien Swarm (Animated version)

Score: 0

Kevin Kiner

as Composer in Ben 10: Race Against Time (Animated Version)

Score: +1

John Williams

as Composer in Ben 10: Race Against Time (Animated Version)

Score: +1

Carrie Fisher

as Leia Organa Solo in Star Wars: World between Worlds

Score: +1

Harrison Ford

as Han Solo in Star Wars: World between Worlds

Score: +1