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Villains Wiki
Villains Wiki

Take a look around. It's your dream come true. Through the wonders of automation, this factory can make as many Krabby Patties in one minute as you used to make in a week. Take a whiff of the future, Krabs. Does it smell like money?
~ Don Grouper to Mr. Krabs, introducing him to the new frozen Krabby Patty factory

Don Grouper is the main antagonist of the SpongeBob SquarePants episode "Goodbye, Krabby Patty?".

He is a snowy grouper who works as an ad executive of Grouper, Goby & Koi, but in reality, he is a con artist seeking to become popular for his own selfish interests.

He was voiced by Jon Hamm, who also played Herb Overkill in Minions and Buddy in Baby Driver.


According to Nickelodeon, he is "a charismatic head ad executive of the ad agency Grouper, Goby & Koi.

His "sharp mind and devastating charm make him an irresistible force. When Don's in the room, everyone laps up his words like overpriced organic honey," Nickelodeon says.


Don first appeared when Mr. Krabs showed him a "commercial" of Frozen Krabby Patties he made by himself. Don was not impressed by it, however, he tells Mr. Krabs that if he wants to be rich, he should keep his mouth shut and listen to him and the company. Afterwards, he introduced the staff of executives to Mr. Krabs and SpongeBob (whom he referred to as yellow box). Don showed Mr. Krabs various slogans on what the Frozen Krabby Patty should say on the box. SpongeBob came up with a slogan and says, "Krabby Patties: Tastes so nice that they taste nice". Don rejected it at first, but, he decided to have his star, Patrick, use it for his commercial.

After the rehearsal, Don manipulated Mr. Krabs into changing the Krabby Patty formula so he can become rich faster, to which a gullible Mr. Krabs agreed to. Don gave SpongeBob and Mr. Krabs a tour to his factory. However, during the tour, SpongeBob discovers that his workers are suspiciously filling a funnel with sand. But Mr. Krabs tells SpongeBob it's an imported product spelt "sand", but pronounced "filler".

After Mr. Krabs got a check that holds a huge amount of money, Mr. Krabs turns the old Krusty Krab into a museum with a gift shop. Soon or later, Don, Mr. Krabs, and Patrick became so popular that everyone in Bikini Bottom kept buying more Frozen Krabby Patties, which completely disheartened SpongeBob. After Plankton leaves with one, SpongeBob learns that the Frozen Krabby Patties that Don had been manufacturing are made out of sand and decides to expose him for the fraud that he is. SpongeBob gives Patrick a Krabby Patty made with the original recipe, and their friendship has been restored. Later, at the shareholder's meeting, Don and Mr. Krabs allowed Patrick to speak to the audience before airing the 400th commercial.

Patrick begins his speech and with SpongeBob's guidance reveals to the audience that the frozen patties are made out of sand. The audience and Mr. Krabs are shocked at this sudden realization and learn that Don and his executives are frauds. With his secret exposed, Don walks off the stage while the audience vomits out sand. He is presumably arrested, after the frozen patty factory was shutdown.


But if you really want to be rich, keep your mouth shut, and listen to us, sir.
~ Don Grouper to Mr. Krabs, encouraging him to listen to his advertising scheme
Whoa, hey, this little yellow box sure is full of questions. What do you say we go see where the money's made?
~ Don Grouper, interrupting SpongeBob's question in order to introduce Mr. Krabs to the new frozen Krabby Patty factory


  • There are some more possibilities of evil acts in Grouper that could easily be overlooked.
    • If Grouper had been con-artistic ever since his career began, he could have tried to keep advertisement celebrities (like Patrick) from spending time with friends so they could endlessly make commercials. This is possible, hence the 400th frozen Krabby Patty commercial aired shortly after the product's creation.
    • The sand in the frozen Krabby Patties made the eater's glutes expand. This could make get Don Grouper guilty of numerous mutilations.
    • Grouper may have tricked Mr. Krabs into using sand to make Krabby Patties by sparing expenses on ingredients.
    • Grouper is not arrested on-screen. If he was not arrested, Grouper could con other popular businesses (ex. Snailpo, Blanchy Franchising Corporation) and continue his scheme.
      • On top of everything listed previously, Grouper is an executive, so even if he was arrested, if the business he worked for was not shut down, the people who worked there may be influenced enough by him to repeatedly con businesses.


           SpongeBob.png Villains

Main Villains
Mr. Krabs | Plankton | Karen Plankton | Mrs. Puff

Major Villains
Flying Dutchman | Man Ray | Sinister Slug | Jumbo Shrimp | Atomic Flounder | Dirty Bubble | Bubble Bass | Plankton Family | DoodleBob

Movie Villains
The SpongeBob Squarepants Movie:
Mr. Krabs | Mrs. Puff | Plankton | Dennis | Karen Plankton | Victor | Cyclops | Boat Jacker | The Thug Tug Gang
The SpongeBob Movie: Sponge Out of Water:
Plankton | Mr. Krabs | Burger-Beard
The SpongeBob Movie: Sponge On the Run:
Plankton | Mr. Krabs | Karen Plankton | King Poseidon | El Diablo

Super Villains
The Moth | Catfishstress | Octopus King | Hoodoo Guru | Robot Mantis

Alaskan Bull Worm | Puffy Fluffy | Big One | BlackJack SquarePants | Sea Bear | Evil Alien Jellion Overlord | Dragon Jellyfish | The Jellions | Jelliens | Kraken | Krabby Patty Zombies

Evil Organizations
Every Villain Is Lemons | Evil Syndicate

Sergeant Sam Roderick | Tattletale Strangler | Howard Blandy | Carl | Con Man | Master Udon | Don Grouper | Animatronic Hieronymus Glove | Madame Hagfish | Art Appraiser | Miss Gretel Puss | Flats the Flounder | Gale Doppler | Stickyfins Whiting | Dorsal Dan

The Fisherman | Hash-Slinging Slasher | Count Orlok

Abrasive SpongeBob | Dead-Eye Plankton | Planktonamor | Dreaded Patrick | Karen 2.0 | Captain Scarfish | ToyBob | Mini Doodles | Plankrab | Doctor Negative | Alternate Reality Mr. Krabs

Lord Poltergeist | Gordon


Video-Game Villains
King Gorge | The Mawgu | SpongeBot SteelPants | Robot Plankton | Robots | Globulous Maximus | Seymour Scales

Other Animals
Triton | Cuddle E. Hugs | Swamp Natives | Earworm