Rock on, freaky bro!
— Incidental 37B, "SquidBob TentaclePants"

Incidental 37B is a fish who appears as a common background character in the series. He debuts in "Ripped Pants." He is frequently portrayed as a surfer, but he has also been a businessman, a normal homeowner, and a criminal. He is classified as a "hotdog" type incidental.



He is a purple fish with blue striped dark purple fins. His eyes are light yellow with black pupils. His most common outfit is a green baseball cap and a pair of yellow shorts with orange flowers on them. Sometimes, his shorts are light olive green with a dark orange flower design. In "My Pretty Seahorse," he is blue instead of purple and has a red hat. In older episodes, his eyes were closer together. He occasionally wears other outfits. He wears a dark green tank top in "Chocolate with Nuts," a business suit in "Missing Identity" and "The Abrasive Side," and a prisoner's outfit in "The Inmates of Summer," "Jailbreak!," and "The Krusty Slammer." When he wears these outfits, he does not have his recognizable hat.

Role in series

"Ripped Pants"

He is seen at Goo Lagoon.

"Karate Choppers"

He is seen at the Krusty Krab.

"Fools in April"

He is seen with Incidental 45 and says "that guy has definitely got some issues work out." to Squidward.

"Christmas Who?"

He is the last Bikini Bottomite to send a letter to Santa Claus. He writes his letter in Portuguese and remarks that he hopes Santa can read it. He later appears with Incidental 68 when all the Bikini Bottomites believe that Santa Claus was a fake.

"SpongeGuard on Duty"

He is seen at Goo Lagoon.

"My Pretty Seahorse"

He appeared along with Scooter.

"The Bully"

When SpongeBob is hiding inside a toilet at Mrs. Puff's Boating School's bathroom, he hears footsteps and thinks it's Flats the one who is coming, so he decides to "act natural." However, the one who walks in was Incidental 37B and sees SpongeBob as a real life sponge, then he says "Oh, that's real nice" and leaves, just for Flats to enter right after.

"Mermaid Man and Barnacle Boy IV"

He is shrunken by SpongeBob using Mermaid Man's belt.

"New Student Starfish"

He is seen as a student at Mrs. Puff's Boating School.

"Born Again Krabs"

He is seen at the Krusty Krab re-opening.

"I Had an Accident"

He is seen in the long line of the seven-mile spanking machine.

"Krabby Land"

He is seen as a child.

"The Sponge Who Could Fly"

He mocks SpongeBob for trying to fly.

"Pranks a Lot"

He is seen laughing at SpongeBob and Patrick's nudity.

"SquidBob TentaclePants"

He sees SpongeBob and Squidward fused together and says "Rock on, freaky bro!" Later, at Squidward's concert, he says the same thing when SpongeBob reveals himself from under Squidward's cloak. This causes the crowd to cheer.

"Stanley S. SquarePants"

He is seen in a line at the Krusty Krab when Stanley runs out of the Krusty Krab.

"The Abrasive Side"

He is seen in the long line at the bus stop.


He appears as a prisoner and is seen talking with Mable.

"The Krusty Slammer"

He appears as a prisoner in the Krusty Krab. His name is revealed in This episode.


  • He is sometimes portrayed as a criminal, like in "The Krusty Slammer," and at other times, as a citizen of Bikini Bottom.
  • He is seen as a teenager in a few episodes, such as "Christmas Who?"
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