Sheldon J. Plankton

"Hear me, Krabs! When I discover your formula for Krabby Patties, I'll run you out of business! I WENT TO COLLEGE!"
Gender: Male
Type: Small Comedic Villain
Age: 80
Species: Planktonic copepod
Portrayed by: Doug Lawrence
Status: Alive
Media of origin: SpongeBob SquarePants

Sheldon J. Plankton, commonly known as Plankton, is one of the main antagonists in the hit Nickelodeon animated series SpongeBob SquarePants. He used to be best friends with his arch-rival Mr. Krabs until the incident where they accidentally killed Old Man Jenkins with their experimental burger. Since then, he got married to Karen and both founded and owns the unsuccessful Chum Bucket right next to The Krusty Krab where he would always try to steal the Krabby Patty secret formula. He is voiced by Doug Lawrence.

Why He Deserves The Krabby Patty Secret Formula

  1. He is one of the funniest Nicktoon villains ever created, just like another great villain that isn't from Nickelodeon.
  2. Plankton's dialogue with Karen is usually hilarious, and it's fitting that he's married to a computer in the first place.
  3. His marriage to Karen has also been the focus of many great episodes, like "Single Cell Anniversary", "Karen's Virus", "Walking the Plankton", and "Lockdown for Love".
  4. Unlike Mr. Krabs, all that Plankton wants is to have his own restaurant that cares for his own customers, even if he tries to steal Mr. Krabs's Secret Formula. Although on some occasions, he wants to rule the world, considering that he embraces evil.
  5. His comical defeats such as being stepped on like a bug or being launched back to the Chum Bucket are always very entertaining to watch.
  6. Plankton's minuscule appearance coupled with his 'Napoleon complex' makes for some recurring hilarious slapstick gags, such as being stomped by people like a bug.
  7. Plankton is very experienced with science and technology.
  8. In the episode "F.U.N.", he and SpongeBob got along well as well as in the Sponge Out of Water movie.
  9. Plankton acts as the supportive deuteragonist of SpongeBob: Out of the Water, which is showing that he wants to help and does not care too much about his single-minded goal over other his friends.
  10. When his restaurant goes into business, he doesn't only care about money and fame, he genuinely cares about the customers unlike his arch-enemy Mr. Krabs.
  11. He was arguably at his best in "The SpongeBob SquarePants Movie (2004)", where he slowly became a true threat to be reckoned upon despite having his fair share of humorous and pathetic moments.
  12. He had shown to have good chemistry with Sandy in the episode "Perfect Chemistry".
  13. When the show declined between seasons 6-8, he and Squidward were the most likable and least flanderized of the main cast.
  14. Plankton is quite a wonderful father at times. He was courageous when attempting to save his son Chip II.
  15. Although he embraces being evil and selfish, he does possess much better personality traits than Mr. Krabs. He values the well-being of those he befriends or is in relationships with, such as his wife Karen, his pet Spot, and even SpongeBob of all people. He is even willing to help SpongeBob and his friends genuinely when not having a hidden agenda (usually stealing the formula).
  16. He can be a menacing and intimidating villain in occasions such as the first movie, where he successfully takes over Bikini Bottom, or his debut appearance with his control of SpongeBob. Making him a credible villain despite his comedic moments.
  17. He often has quite a snarky attitude and his remarks can be really funny.
  18. His first name, Sheldon, can be hilarious, as seen in "Plankton's Army".
  19. His screams, provided by Mr. Lawrence, are hilarious to hear.
  20. While all of his constant failures, setbacks, and misadventures are all played for comedy; it also raises a ton of sympathy since it's sometimes done in a way for us to sympathize with Plankton for how incredibly luckless and ineffectual he generally is.
  21. He provided memorable dialogue and quotable one-liners that include:
    • "I went to college!"
    • "You'll pay for this, Krabs!"
    • "Not if I shift to maximum overdrive!"
      • "I knew I should've added the turbo."
    • "Arggh! It's not worth it! (calmly) Goodbye everyone, I'll remember you all in therapy."
    • "You'll never get what you want if you let people step all over you."
    • " Oh come on kid, you asked that already. Now quit wasting my time!"
    • "I'm Plankton, you old hag! And your son smells like boogers!"
    • "I think it's time for you to lose some weight fatty. That's what's it is!"
    • "Someone should put you on a box, floating down the river, GRANDMA!!"
    • You people are crazy! I'm getting out of here!
    • Customer: "You think this is funny?"
      • Plankton: "In a cosmic sort of way, yes."
      • Customer: "Well Mr. Funny man, is this how you get your sick kicks!?"
      • Plankton: "What? It's just an ordinary Krabby- Oh my goodness! Squidward!"
    • "Enjoy while it lasts, Mr. Krabs. Soon enough, I'll have the formula, then everyone will eat at the Chum Bucket, AND I WILL RULE THE WORLD!"

Bad Qualities

  1. As said above, he is often mean-spirited and obnoxious towards the kindness of others. Again, because he is evil, he's supposed to be that way.
    • He was at his absolute worst in "Someone's in the Kitchen with Sandy", because he robbed, humiliated, and got Sandy arrested in that episode.
    • In "Welcome to the Chum Bucket", he neglected SpongeBob's feelings and fails to show him compassion and understanding so he can make a Krabby Patty, meaning he's not only mean-spirited, he was also stupid.
    • In "Karen 2.0", he heartlessly shuts off Karen's brain, who has been nothing but a good wife to Plankton, to be replaced by Karen 2 and trashing her, essentially killing Karen or at least, putting her permanently to sleep.
  2. He is at times selfish and he tried to get rid of his son, tolding him to run away.
  3. His obsession with stealing the secret formula from Krabs often leads to a strained relationship with his wife, Karen, who usually tolerates his repetitive ambitions.
  4. Much like Wile E. Coyote: He can be quite the punching bag in a predictably incompetent fashion when he typically fails at his single-minded schemes, along with the constant running gag of Plankton's sheer ineptitude with his rivalry against The Krusty Krab does get a bit stale towards viewers.
    Not to mention that even after seasons 6 to 9a, he too can still have bad episodes that focus on him suffering in a miserable state of mind, and much to the point you can sometimes sympathize with him in a pitiful manner.
    • In "Plankton's Regular", when he finally got a customer who likes his chum and was happy about his achievements, he is yet pointlessly suffering and being completely miserable because of Krabs and SpongeBob themselves (the former out of petty jealousy and the latter naively thinking that he was making another 'villainous' plan of his).
  5. Despite being a power-hungry and ambitious villain, he has shown to be cynical and pessimistic sometimes.
    • He almost killed himself in the infamous season 7 episode "One Coarse Meal" because of his fear of whales and all because of Mr. Krabs maliciously making him incredibly depressed, paranoid and fatalistic. Thankfully, he overcame his fear of whales in later episodes like "Patnocchio" for example.
  6. His short temper, aggression, and wrathful tendencies often lead to Karen's frustration and his failings.
  7. He can be childish and whiny at times.



  • As shown in "Friend or Foe", Plankton is the same age as Mr. Krabs.
  • Originally, Plankton (and Karen) were recurring antagonists in the pre-movie era. Plankton's voice actor, Mr. Lawrence, explained that Plankton "was only supposed to be in one or two episodes, but I was a writer on the show and I really liked this character". The credits of the 2004 movie were the first time that the SpongeBob franchise ever billed a "Main Cast" in its credits. Both Plankton and Karen were both officially promoted to main characters in the film's credits.


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