Encyclopedia SpongeBobia
Encyclopedia SpongeBobia
Hey Plankton, can I get another one of your delicious chumsticks?
— Incidental 41, "Plankton's Regular"

Incidental 41[1], also known as Incidental BM41, and Incidental FG4, is a fish who debuts in the episode "Ripped Pants." His incidental type is currently unknown.




He is a yellow-tan-colored fish with light lavender lips and a dark lavender dorsal fin. He has white eyes with black pupils, and he has a lavender mouth. He also has light green arms and legs and he wears faded light blue shorts. His stomach is dark-yellow/green and he is very slender and skinny. In his older appearances, he had stumpier proportions, oval shaped eyes, and a rectangular detail with a button on his shorts.

Incidental BM41/Incidental FG4

He wears a dark gray suit over a light pink dress shirt with a purple necktie.

Role in series

Incidental 41 making his most notable appearance in the episode "Plankton's Regular."

Incidental 41 is one of the most commonly used incidental characters in the series. He has made many notable roles as well as non-speaking minor ones. He makes his most notable appearance in the episode "Plankton's Regular" as a regular Chum Bucket customer named Nat. He can commonly be seen alongside Incidental 42 in many episodes.

Major roles

"Ripped Pants"

He is seen at the snack bar with Incidental 42 where SpongeBob tells them about his ripped pants much to their annoyance.

"Rock Bottom"

He is seen as a bus driver when SpongeBob and Patrick accidentally board the wrong bus where SpongeBob constantly hits him with his Glove balloon by accident. He later abandons SpongeBob and Patrick at Rock Bottom.

"Walking Small"

When Plankton was speaking through his megaphone, Incidental 8 asks him if he hears anything and Incidental 41 shakes his head no.

"Fools in April"

He orders 2 large fries and a Jumbo Krabby Patty from SpongeBob. SpongeBob then tells Incidental 41 to turn around because he saw something, which caused SpongeBob to turn around with a smiley face on him back. Incidental 41 then turns back around and questions where SpongeBob went and SpongeBob turns around and tells him "April Fools." Incidental 41 then laughs at SpongeBob's prank and tells him it was pretty good.

"Something Smells"

He is seen in the bathroom at Reef Cinema with Incidental 31 and Incidental 30 where Patrick walks up to the three of them asking if they want to hear a bathroom joke. They then smell Patrick's bad breath and leave.

"Big Pink Loser"

He is seen at the Krusty Krab and making fun of Patrick for using a broom incorrectly asking him if he just blew in from "stupid town."

"Imitation Krabs"

He gets his drink taken by Mr. Krabs so he can use the straw to shoot Plankton out of the Krusty Krab.

"Bubble Buddy"

He is seen in the bathroom line at Goo Lagoon behind Incidental 40 waiting impatiently.

"No Free Rides"

He is seen celebrating Incidental 73's birthday in Mrs. Puff's fantasy until SpongeBob runs them over.

"Band Geeks"

He plays the trumpet after Fred and Incidental 106 crash into a blimp by twirling their flags too fast.


SpongeBob shows him his excitement over getting an assignment, and Incidental 41 then goofily tells him that they will be writing eight 800 words.

"Sailor Mouth"

He hears SpongeBob's swearing over the intercom where he suddenly stops chewing his patty.

"Artist Unknown"

When Squidward welcomes him to art class, he says "Oh, isn't this cooking?" and leaves with the rest of the class.

"Sandy, SpongeBob, and the Worm"

He is seen at the Krusty Krab where he demands that everyone should lock their doors in order to be safe from the Alaskan Bull Worm.

"The Algae's Always Greener"

An alternate universe version of him complains to Plankton about Alternate-Universe Squidward's horrific attempt at cooking.

"My Pretty Seahorse"

He is given the bowl of onions by Squidward, causing him to cry.

"Just One Bite"

He is seen as the wedding announcer in Squidward's fantasy.

"The Bully"

He is seen at Mrs. Puff's Boating School where he gets disturbed by SpongeBob sorting his pencils.

"Idiot Box"

He is seen on a soap opera, giving a box as a gift to Incidental 48. She then gives him a box as well.

"Doing Time"

He is seen working as a bank teller at a bank that SpongeBob and Patrick attempt to rob, but he ends up asking for access to SpongeBob's bank account only to find out SpongeBob has no money at all in either of his accounts.

"One Krabs Trash"

He offers Mr. Krabs $100,000 for the soda drinking hat and later at the end of the episode explains to Mr. Krabs that the hat is worthless.

"As Seen on TV"

He bumps into SpongeBob where he assumes that he is a fan due to him starring in a commercial.

"Squilliam Returns"

SpongeBob uses a cheese grater on his pants when he starts freaking out.

"Rock-a-Bye Bivalve"

He is seen where he and Incidental 48 question how a sponge and starfish made a clam.

"The Great Snail Race"

He sneaks into the announcer's box, only to be caught by Sports guy.

"Born Again Krabs"

He is seen eating at the Krusty Krab and getting his free refill taken by Mr. Krabs.

"I Had an Accident"

He is seen playing Football with Incidental 42.

"Krabby Land"

He is seen as a child wanting to go to Krabby Land and later see Krabby the Clown.

"Missing Identity"

He is seen at Snail-Po World Headquarters where he feels a disturbence from SpongeBob's gagging.

"The Sponge Who Could Fly"

He at first makes fun of SpongeBob's flying and late forms an angry mob with other citizens and chase SpongeBob for thinking that he is more important than them.

"Pranks a Lot"

SpongeBob asks him for the time and he does so but then gets frightened thinking SpongeBob is a ghost due to being invisible. After he flees, his eyes become sentient and drive away on a boatmoblie.

"Krabs vs. Plankton"

After Plankton slips where SpongeBob mops he says that if were him that slipped there he would sue Mr. Krabs for all he has got. He later appears as part of the jury.

"Good Neighbors"

He is seen as part of the angry mob as seen outside Squidward Tentacles' house after it rampaged through the Bikini Bottom.

"Enemy In-Law"

He was one of the people that Plankton threw in his restaurant with his robot. When he overhears that Plankton's kidnapped him and other people to force them to eat at the Chum Bucket they leave. He also calls Plankton a little twerp.

"Mermaid Man & Barnacle Boy VI: The Motion Picture"

He works on the crew of SpongeBob's film about Mermaid Man and Barnacle Boy.

"Mrs. Puff, You're Fired"

He is seen at Mrs. Puff's Boating School as a student however disobeys the rule of no talking and is thrown out of class by Sergeant Sam Roderick. He later appears as a baker.


He makes fun of SpongeBob's wig with Incidental 106 and later trips him at the Reef Cinema.

"Hocus Pocus"

He is seen as a bus driver.

"The Pink Purloiner"

He is seen as a bus driver where he returns Ol' Reliable to SpongeBob.

"Boat Smarts"

He gets into a vehicle accident caused by SpongeBob.

"Krabs à la Mode"

He is seen waiting for Squidward to bring him his Krabby Patty before he falls down on the ice. All of the other customers leave, but they come back shortly afterwards in warmer clothing. At the end of the episode he visits the Krusty Krab which is now a public swimming pool.

"Roller Cowards"

He is working at Glove World! where he finds SpongeBob and Patrick's tickets in their back pockets. He later is seen as the operator of The Mitten.

"The Krusty Sponge"

He is seen at Krusty Krab when Gene Scallop is reporting his review on the news. He is seen in line waiting to ride the train outside the Krusty Krab, which Mr. Krabs charged customers to ride. After SpongeBob gets tired of pleading he and the other passengers are about to form an angry mob however, SpongeBob escapes.

"Sing a Song of Patrick"

He is seen as a cotton candy salesman.

"The Krusty Plate"

He is seen exiting the Krusty Krab with Incidental 104 at closing time.

"Goo Goo Gas"

He turns into a baby with Incidental 47.

"Mermaid Man vs. SpongeBob"

He is Perch Perkins camera man.

"Pest of the West"

He appears as a photographer at Dead Eye Gulch where he takes a picture of SpongeBuck SquarePants and his pals.

"What Ever Happened to SpongeBob?"

He is seen at the Krusty Krab wanting his Krabby Patty along the other customers before Mr. Krabs pushes him out. He later appears in New Kelp City congratulating SpongeBob for running bubble gang out of town.

"The Two Faces of Squidward"

He is seen admiring Squidward's handsomeness claiming to want his eyelids.


On windy night he and Incidental 45 are leaving a Diner when their leftovers blow away in the wind.

"Banned in Bikini Bottom"

He pushes Incidental 40 while waiting in the Secret Krusty Krab.

"The Splinter"

He asks Squidward that he ordered a couple of Krabby Patties and wonders when they would be out.

"Suction Cup Symphony"

He is shown to be the drummer of the Bikini Bottom Symphony Orchestra.

"Slide Whistle Stooges"

He is seen being stitched shut at the hospital by Incidental 116.

"A Life in a Day"

He watches Larry the Lobster do daredevil tricks and asks him what he his secret is.

"Sun Bleached"

He is seen with tanned skin at Goo Lagoon with Incidental 45 and pours tan accelerator on his body that turns him into bacon.

"Plankton's Regular"

His most notable appearance where he is named Nat throught the episode, he feigns enjoyment of Plankton's chum in order to fulfill a deal with Karen, Plankton's wife. He is shown to live in a mobile home and apparently possesses great acting skills, as he manages to fend off SpongeBob's persistent attempts to give him a Krabby Patty. However, one can foresee the ending when Nat is forced to taste Mr. Krabs' Krusty Chum and he proclaims that it is the second foulest thing he has ever tasted. The audience can infer that the foulest thing is actually Chum, and Mr. Krabs has thwarted him in that area of food service as well. At the end of the episode, Nat breaks the news to Plankton and cuts off the deal with Karen, returning the money that she had given him to eat at the Chum Bucket. He is last shown being carted off by medical staff members to have his stomach pumped, which he claims will be the third time he will have visited the doctor on account of Chum.

"The Krabby Kronicle"

Mr. Krabs asks him if he is interested in reading the Examiner. He replies by saying that nobody reads the Examiner and that the Bottomfeeder is the newspaper thats really selling.

"Porous Pockets"

He is seen hanging out with SpongeBob after he gains a lot of money where he tells Patrick that he can buy and sell him with the amount of money he has.

"Choir Boys"

He is seen at Bikini Bottom Men Choir.

"Gullible Pants"

He is seen at the Krusty Krab with Incidental 8 where he tells her next time he will choose where they eat when SpongeBob gives then trash.

"Chum Bucket Supreme"

He parks at the Chum Bucket with Incidental 106 due too there being no parks at the Krusty Krab.

"The Inside Job"

His face is touched by SpongeBob due to him being blind thanks to Plankton.

"SpongeBob's Last Stand"

He is seen during the song Give Jellyfish Fields a Chance and destroys Patrick's tambourine at the end of their song making SpongeBob believe that he has a dislike for tambourines.

"The Play's the Thing"

He is seen having his arm chewed by a hungry Incidental 40 and he gives him some salt to go with it. Later, he throws food and drink at SpongeBob and Squidward.

"The Cent of Money"

He accuses Mr. Krabs of stealing his change but Mr. Krabs denies this and claims he found the change on the floor. He later appears at the Fun Arcade.

"The Monster Who Came to Bikini Bottom"

He tells Mr. Krabs and SpongeBob that their ice machine is broken. At the end of the episode he receives to ice cubes due too Rrarrg throwing them to the Krusty Krab. He is also one of the police officers in the episode.


He opens the Krusty Krab door for a lady which irritates Squidward due to getting his fingerprints on the glass.

"Buried in Time"

He brings a toaster to put into the time capsule.


He is shown leaving the Krusty Krab due to SpongeBob singing Musical Doodle.

"Tunnel of Glove"

He is seen as an employee at Glove World operating the tunnel of glove.

"Krusty Dogs"

SpongeBob places a balloon inside his Krusty Dog that later blowed up and exploded, which ended the big sale of Krusty Dogs.

"Big Sister Sam"

He is seen playing horseshoe toss with Clint.

"Barnacle Face"

He leaves the Krusty Krab because of Pearl's crying.

"The Krabby Patty That Ate Bikini Bottom"

He is seen as a police officer giving a parking ticket to a boat before he can place the ticket on the boat the Giant Krabby Patty eats the boat but spits out the engine leaving him to put the ticket on the engine.

"Are You Happy Now?"

He is seen as a band member in the orchestra where he accidentally launches his violin bow into Squidward's eye.

"Free Samples"

He tries Plankton's free Chum samples but gets food poisoning in the process. He and the other customers form an angry mob and chase after Plankton. He and Incidental 46 later spend all of their life savings to order more "new" Krabby Patties.


His drink is knocked over by Gary who has come to the Krusty Krab to ask SpongeBob for a treat. He then advises SpongeBob to go to the Snail Bites factory to try getting Gary more Snail Bites.

"Move It or Lose It"

He questions Mr. Krabs about why his Patties are dangerous.


He is seen trapped in a boat at Boating School with Mrs. Puff trying to get him out and Patrick Man thinks that Mrs. Puff is stealing the boat that he is trapped in and has her trapped under a net. The cops then come to arrest Mrs. Puff due to believing that she was a boat theif. He then yelps out "help" when the cops leave with Mrs. Puff.

"Squid Baby"

He yells, My face! My face! Also my leg, but mostly my face!," making a reference to Fred's catchphrase "My leg!."

"Little Yellow Book"

He is seen waiting in line to order something at the Krusty Krab and later he throws tomatoes at Squidward for reading SpongeBob's personal diary.

"Evil Spatula"

He becomes impatient about not getting his order and is about break the cash register before SpongeBob gives out their orders.

"Safe Deposit Krabs"

He is seen as security guard at the Bank of Bikini Bottom Bank with Incidental 42.

"Kenny the Cat"

He tells SpongeBob and Patrick that Kenny will not arrive until next morning after seeing them waiting for him in the middle of the night.

"Lost in Bikini Bottom"

He is seen in the Krusty Krab with Incidental 22 where SpongeBob hugs them when he arrives at the Krusty Krab.

"Larry's Gym"

He offers Larry the Lobster donuts but Larry tells him not to bring donuts into the gym.

"Married to Money"

He is the pastor at Mr. Krabs' and Cashina's wedding.

"Out of the Picture"

He asks Squidward for some ketchup.

"Feral Friends"

He gets stopped by the Highway Speed Patrol officer in his car and they later devolve into realistic fish by Neptune's moon.

"Cave Dwelling Sponge"

He along with other customers at the Krusty Krab complain to Squidward about the Krabby Patties Spongy Spongy made and throw Squidward in the kitchen. Spongy Spongy later hits Incidental 41's behind while he and the other customers flee out of the Krusty Krab.

"Larry the Floor Manager"

He is seen at the Krusty Krab and later he teams up with SpongeBob to take back the Krusty Krab from Larry.

"Chatterbox Gary"

He is seen walking his worm only for his worm to go and beat up Squidward.

"High Sea Diving"

He and Incidental 104 receive a vacuum cleaner from the Great Pacific garbage patch and use it as a car.

"My Leg!"

He is seen at the morgue at the Bikini Bottom Hospital with his brain being shown and participates in Fred's My Leg Is In Love! song.

"Goons on the Moon"

He is seen walking in Bikini Bottom while the water is slowly getting drained and tips his hat off when he sees Incidental 14.

"The Ballad of Filthy Muck"

He is seen reading a newspaper at the Krusty Krab causing SpongeBob to find out about Filthy Muck.

"Stormy Weather"

He tells Gale Doppler that his weather report was wrong for the first time.

"The Krusty Bucket"

He is at the Krusty Bucket eating a Krabby Patty and claims that it tastes even better than usual. He asks SpongeBob what's inside it and SpongeBob tells him there is a pinch of chum added into it.

"Senior Discount"

He is seen at the Krusty Krab with Incidental CM20 where the get disturbed by Old Man Jenkins.

"Jolly Lodgers"

He appears as the announcer at the Jellyfish convention where he announces the jellyfish mascot hunt.

"A Place for Pets"

He is first seen at the Krusty Krab with Incidental 42. He then sneaks into the Krusty Krab in a worm costume in order to eat a Krabby Patty due to the Krusty Krab currently being a place only for pets.

Major roles in movies

"The SpongeBob SquarePants Movie"

In SpongeBob's dream, he appears as a customer named Phil who ordered a Krabby Patty. However, there is no cheese on the patty, causing mayhem. He is trapped inside the Krusty Krab with police surrounding the scene. SpongeBob arrives at the scene to save the day and carefully places a slice of cheese on the Krabby Patty. SpongeBob then carries him outside to reveal that the cheese was finally added, resulting in the customers lifting him up and congratulating him before he wakes up.

Major roles in games

"Drawn to Life: SpongeBob SquarePants Edition"

His western variant appears as a template for DoodlePants. Several duplicates of him and Incidental 14 also appear as NPCs at Bikini Bottom.


  • His design is similar to Incidental 154, except that his dorsal fin is smoother and he is colored differently.
  • He was incorrectly labeled as Incidental 14 in the storyboard for "Mind the Gap."[2]
  • In a deleted scene of the episode "Big Pink Loser" and in the episode "Plankton's Regular," it is revealed he lives in a trailer.
  • In Bikini Bottom Mysteries episode 4, Incidental 41 is named Nat Peterson which is two of his one time names used in the series with "Nat" from "Plankton's Regular" and "Peterson" from "Missing Identity." Many fans also refer Incidental 41 as Nat Peterson as well.



What is Nat Peterson Hiding?! 👀 Bikini Bottom Mysteries Ep. 4 Nick