Incidental 41 is a fish who has appeared in various episodes and is one of the most common fish characters in the series. He debuted in "Ripped Pants" and had his first major role in "Plankton's Regular."
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.
He often goes without wearing a shirt or shoes. He once wore a suit, when at the Snail-Po meeting.
Role in series
In "Ripped Pants," when SpongeBob comes between him and Incidental 42 to tell them about his ripped pants much to their annoyance.
In "MuscleBob BuffPants," he is seen in the group of people looking at SpongeBob in the Juice Bar.
In "Neptune's Spatula," he is seen in the group of people at the Fry Cook Museum, seen in the crowd at the Poseidome and seen exiting the Krusty Krab.
In "Hooky," he is seen eating at the Krusty Krab and holding Squidward for his terrible cooking.
In "Something Smells," he is seen in the bathroom at Reef Cinema and Patrick walks up to him and his friends asking if they want to hear about bathroom jokes. They smell Patrick's bad breath and leave.
In "Big Pink Loser," he is seen at the Krusty Krab and making fun of Patrick for using a broom incorrectly.
In "Imitation Krabs," he is seen eating at the Krusty Krab and getting his drink taken by Mr. Krabs.
In "Bubble Buddy," he is seen eating at the Krusty Krab and getting his drink taken by Mr. Krabs.
In "Patty Hype," he is seen when Mr. Krabs buries himself alive and later is seen waiting to buy a Pretty Patty.
In "The Algae's Always Greener," he is seen at the beginning of the episode eating at the Krusty Krab. Later, an alternate universe version of him pokes Plankton and complains about Alternate-Universe Squidward's horrific attempt at cooking.
In "Plankton's Regular," his most notable appearance, 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.
In "Squid Baby," he yells, My face! My face! Also my leg, but mostly my face!," making a reference to Fred's catchphrase "My leg!"
In "Squid Noir," he makes a cameo at the Krusty Krab.
In "Cuddle E. Hugs," he eats a ball of a mouldy Patty to see Cuddle E. Hugs and gets eaten by him, but reality he is have an hallucination. The next morning he and the other customers leave in anger and disgust.
In "Chatterbox Gary," he is seen walking his worm only for his worm to go and beat up Squidward.