Plankton

Sheldon J. Plankton is the main antagonist from "SpongeBob SquarePants".

He played Escargoon in Les: Right Back at Ya!
He's King Dedede's Assistant

He played Joe in Help! I'm A Sea Creature
He's an evil and intelligent fish

Portrayals:

 * In SunBob ShimmerPants He is played by Bowser
 * In SpongeDumbo, The SpongeDumbo SquareElephant Movie and The SpongeDumbo Movie: Elephant Out of Water He is played by Scar
 * In Wooldoor Sockbat (Spongebob Squarepants), The Wooldoor Sockbat Movie (The Spongebob Squarepants Movie) and The Wooldoor Movie: Sockbat Out of Paper (The Spongebob Movie: Sponge Out of Water) He is played by Bill Cipher
 * In The DannyBob CatPants Movie He is played by Professor Ratigan
 * In Spongebob Squarepants spoof for 4000Movies he is played by Aldrin Klordane.