Suggestions by @carolbangle

Ms. Marvel

as Barnacle Boy in SpongeBob SquarePants if Fictional Characters

Score: +2

Captain Marvel

as Mermaid Man in SpongeBob SquarePants if Fictional Characters

Score: +2

Raven (Teen Titans Go!)

as Larry The Lobster in SpongeBob SquarePants if Fictional Characters

Score: +2

Ember McLain

as The Flying Dutchman in SpongeBob SquarePants if Fictional Characters

Score: +3

Dog (CatDog)

as Mrs. Puff in SpongeBob SquarePants if Fictional Characters

Score: +3

Cat (CatDog)

as Pearl Krabs in SpongeBob SquarePants if Fictional Characters

Score: +3

Timmy Turner

as Sandy Cheeks in SpongeBob SquarePants if Fictional Characters

Score: +3

Zim (Invader Zim)

as Plankton in SpongeBob SquarePants if Fictional Characters

Score: +2

Unikitty

as Mr. Krabs in SpongeBob SquarePants if Fictional Characters

Score: +3

Rocko Rama

as Squidward Tentacles in SpongeBob SquarePants if Fictional Characters

Score: +3

Caillou

as Patrick Star in SpongeBob SquarePants if Fictional Characters

Score: +3

Aphmau

as SpongeBob SquarePants in SpongeBob SquarePants if Fictional Characters

Score: +4

Scarlett Johansson

as Paula Hutchison in Rocko's Modern Life

Score: +1

Billy West

as Minions in Despicable Me: The Series

Score: -1

Selena Gomez

as Azula in Nicktoon City

Score: +1

Joey King

as Lynn Loud in Nicktoon City

Score: +1

Jennifer Lopez

as Lexx Loud in Nicktoon City

Score: +1

Jaclyn Linetsky

as Patrick Star in Cartoon All Stars to the Rescue (Anime Version)

Score: +1

Jessica Bravura

as Rocko in Rocko's Modern Life (1980's)

Score: +2

Rodger Bumpass

as Odie in The Garfield Movie

Score: 0