SpongeBob SquarePants

Jack M. Crazyfish

on ESB
Jack M. Crazyfish
Jack M. Crazyfish
Residence: Bikini Bottom, Pacific Ocean
Physical appearance
Gender: Male
Color: Purple
Eye color: Black
Enemies: SpongeBob
Sheldon J. Plankton
First appearance: "Blackened Sponge"
Latest appearance: "20,000 Patties Under the Sea"
Portrayer: Greg Baldwin
List of characters

Jack M. Crazyfish[1] is a big purple fish that is the main antagonist in the episode "Blackened Sponge." He is a fish in SpongeBob's dreams, but actually a real person who lives in Bikini Bottom. SpongeBob gets a black eye from trying to take the lid off his toothpaste but he punches himself in the eyeball but makes up a story that he got it from fighting Crazyfish. Crazyfish then comes to the Krusty Krab because he heard that SpongeBob makes great Krabby Patties, and he's hungry for one. He also makes a cameo appearance in "20,000 Patties Under the Sea," throwing rocks at Plankton.

Jack is a fish with a very big body. He wears a brown suit and a yellow shirt underneath. He has a big mustache and a small green top hat on his head. His skin is light purple.



Title Role(s) in episode
"Blackened Sponge" (tr) Debut
"20,000 Patties Under the Sea" (tr) Cameo


  • His voice is different on his first appearance ("Blackened Sponge") from his second appearance ("20,000 Patties Under the Sea").
  • Ever since his first appearance in "Blackened Sponge," he has become a cameo character in "20,000 Patties Under the Sea."
  • When he walks into the Krusty Krab, SpongeBob says "He's real." Although when SpongeBob tells Sandy about him, She seems to know about him. One possible reason is that she may have seen or met Crazyfish.
  • It's unknown what the middle name "M." is suppose to be.
  • Jack M. Crazyfish has never appeared outside of the fifth season.
  • He is portrayed as a dangerous and evil fish in "Blackened Sponge."


Characters (VTE)


SpongeBobPatrickSandySquidwardMr. KrabsPlanktonGary


Mrs. PuffPearlKarenMermaid ManBarnacle BoyLarry the LobsterSquilliam FancysonJohnny ElaineFlying DutchmanPatchy the PiratePotty the ParrotKing NeptunePainty the Pirate

Major Background

Bubble BassFredHaroldNat PetersonOld Man JenkinsSandalsTomSadie Rechid



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