This is the page about Big Johnny. For other uses, see Johnny (disambiguation).
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Big Johnny is one of Billy's friends who also attended Poseidon Elementary School with Mr. Krabs and Plankton. He appears in the episodes "Friend or Foe" and "A Life in a Day."


He initially wears a white T-shirt and blue shorts and has tannish-green skin and dark green fins. For the rest of the episode of his first appearance though, specifically after the scene at Stinky Burgers, he is shown with olive, brown skin, dark green eyes, and light yellow fins.

Role in series

"Friend or Foe"

When first introduced, he is a schoolmate of Mr. Krabs and Plankton at Poseidon Elementary. He is also one of the various friends of the school bully, Billy, who teased and tormented Eugene and Plankton as children. According to his friends, he will eat anything. He was the first to try Plankton's chumburger, but when he eats it, he spits it out due to its toxic flavor.

"A Life in a Day"

He makes a cameo at the beach.


  • Big Johnny resembles a younger version of Tom and features many characteristics from him, such as his olive-green color skin and the purple T-shirt and blue shorts he wears.
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