SpongeBob SquarePants

Sinister Slug

on ESB
Sinister Slug

Sinister Slug2

180px-Schnecke des Schreckens jung

Interests: Being Evil
Occupation(s): Villain
Physical appearance
Gender: Male
Color: Green
Eye color: Red
Classification: Mutant Slug
Friends: Dirty Bubble
Man Ray
Jumbo Shrimp
Atomic Flounder
Employer: B.G.A.T.F.B.C.
Enemies: Mermaid Man
Barnacle Boy
The Elastic Waistband
The Quickster
Miss Appear
Professor Magma
Pi-Right Ponderer
Series information
First appearance: "Mermaid Man and Barnacle Boy II" (Cardboard Cut Out)
The Bad Guy Club for Villains
Latest appearance: "The Bad Guy Club for Villains"
SpongeBob Moves In! (Cardboard Cut Out)
Portrayer: Dee Bradley Baker (in "The Bad Guy Club for Villains")
List of characters

The Sinister Slug is a villain of Mermaid Man and Barnacle Boy.


In "Mermaid Man and Barnacle Boy II", he has red eyes, and resembles a dark green worm. He also has very sharp teeth.

In "The Bad Guy Club for Villains", he has a bulbous beige body, completely red eyes, a few tufts and even sharper teeth. He also does not wear any kind of clothes this time.

Role in the series

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Mermaid Man and Barnacle Boy (VE)

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