This is a list of every alter-ego of SpongeBob SquarePants.
List[]
| Image | Alter-ego name | Description | Appearance | ||
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Mermaid Pants | SpongeBob and Patrick are playing Mermaid Man and Barnacle Boy in the former two episodes, and annoy Squidward in both of them by pretending that he is a villain (Reflecto in the first episode, and Doctor Negative in the second). In "Man Ray Returns," he and Patrick spy on their new neighbor, who they discover is actually Man Ray, so they transform into Mermaid Pants and Barnacle Star and confront him afterwards. | "Mermaid Man and Barnacle Boy" "Mermaid Pants" "Man Ray Returns" Nickverse "Movie Stars" | ||
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Open window maniac | He appears trying to show two fish the error of leaving their window open through an example. However, SpongeBob's actions along with his future destruction of the city earn him the label of "the maniac" and make him wanted. Oblivious to his actions and blinded by his hall monitor title, SpongeBob goes after his alter-ego along with Patrick. | "Hall Monitor" | ||
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JellyBob FishPants | SpongeBob refers to himself by this name as he greets the jellyfish in Jellyfish Fields, trying to fit in them. | "Nature Pants" | ||
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The Amazing Mister Absorbency | SpongeBob is trying to come up with an act so that Squidward would approve for his Krusty Krab talent show. He comes up with this act and dubs himself as "The Amazing Mister Absorbency," but Squidward tells him that nobody would want to see him "engorge himself." | "Culture Shock" Employee of the Month | ||
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MuscleBob BuffPants | Scooter gives SpongeBob this nickname when Sandy is looking for him. At that time, SpongeBob grew his arms with Anchor Arms and shows off his fake strength to everyone. Sandy signs him up for the Anchor Toss Competition, where the arms deflate after SpongeBob overinflates them while trying to lift an anchor. | "MuscleBob BuffPants" | ||
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The Flying Dutchman | When SpongeBob and Patrick are making a costume for SpongeBob, he portrays himself as the Flying Dutchman, attempting to scare the people around Bikini Bottom and at the Krusty Krab's Halloween party. | "Scaredy Pants" Nickverse | ||
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SpongeBob ScaredyPants | Mr. Krabs and Mrs. Puff both give SpongeBob this nickname due to him easily being scared on Halloween. This actual form shows up when the Flying Dutchman removes SpongeBob's costume and flees. SpongeBob scares everyone else at the Halloween party afterwards. | "Scaredy Pants" | ||
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SpongeSnail | When Squidward accidentally injects SpongeBob with snail plasma, he experiences snail-like symptoms and eventually transforms into a hybrid of both sponge and snail. He knocks on Squidward's door and starts following him while meowing constantly, which makes Squidward paranoid and try to find an escape from him. Eventually, Squidward himself gets injected with the snail plasma and he turns into one as well. | "I Was a Teenage Gary" The Cosmic Shake | ||
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Peggy the Pirate | When Mr. Krabs shows up in a pirate ship, he gives SpongeBob and Patrick pirate gear, SpongeBob wears both peg legs and trips. | "Arrgh!" | ||
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Sponge of Mystery | SpongeBob guises under this alter-ego while on afternoon patrol with Mermaid Man and Barnacle Boy. Later in the episode, while Mermaid Man and Barnacle Boy are trapped inside the Dirty Bubble, the Sponge of Mystery asks for his autograph and ends up popping him with his pencil in the process. | "Mermaid Man and Barnacle Boy II" | ||
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God SpongeBob | SpongeBob got turned into a God by King Neptune. | Neptune's Spatula | ||
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Patrick Star | In an attempt to stop Patrick from copying him, SpongeBob dresses up as Patrick, which only leads Patrick to further think his old self was a "big pink loser." Soon after, the next award arrives, which Patrick thinks is for SpongeBob, but it is actually Patrick's. | "Big Pink Loser" | ||
    
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Old Man SpongeBob SquarePants | When SpongeBob takes Old Man Patrick and his old friends to Bunny Buns, they all misbehave which causes him to get so over worked that he turns all wrinkly and old like Patrick. He then tries to walk until he declares that he is "losing steam" and steam shoots out of his pores. Back at Shady Shoals Rest Home, Old Man SpongeBob is seen napping outside and his heart monitor suddenly stops beeping. Patrick assumes that he has passed away but SpongeBob, who is young again, jumps out of the blanket and tells Patrick "Gotcha!" and the two share a laugh.
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"Patty Hype" "The Secret Box" "Squid on Strike" "Goo Goo Gas" "The Great Patty Caper" "Old Man Patrick" | ||
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Man Sponge | SpongeBob and Patrick are invited by Mermaid Man and Barnacle Boy to watch the Mermalair. They accidentally free Man Ray, and afterwards try to teach him goodness levels. However, this backfires when SpongeBob and Patrick end up fighting over the remote activating the tickle belt and break it. SpongeBob and Patrick think Man Ray is rehabilitated, but Man Ray runs away soon after, which leads them to role play as Mermaid Man and Barnacle Boy to stop him. | "Mermaid Man and Barnacle Boy III" | ||
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The Quickster | As part of the IJLSA, SpongeBob roleplays as The Quickster, who has the uncanny ability to run really quick. His costume is white with a red lightning bolt on it. However, if he abuses his speed, he will be little more than a pair of shoes. | "Mermaid Man and Barnacle Boy V" | ||
  
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Elf SpongeBob SquarePants | Mr. Krabs presides over a winter wonderland Krusty Krab as Krabby Klaws, with SpongeBob as head elf in charge of holiday cheer, offering up a whole slew of holiday activities for kids to partake in as they eat their patties.
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"Mid-Life Crustacean" "Holiday Party" "The 12 Days of Nickmas" Merry Nickmas Specials Christmas with Krabby Klaws Best Christmas Stories Ever! | ||
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Krabby Patty burglar | He is Krabby the Clown's sidekick. When Mr. Krabs leaves, SpongeBob quickly claims himself to be Krabby the Clown's beloved sidekick and attempts to stall the kids. He works until the kids rip his limbs off and use them as boomerangs. | "Krabby Land" | ||
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The Bird Man of Bikini Bottom | SpongeBob wishes to fly with the jellyfish. After others witness his failed attempts, they give SpongeBob this nickname and ridicule him. Later, when SpongeBob receives an insulting call, he puts the hairdryer in his pants, with the pants being inflated, giving him flying powers. After being asked to do favors for the citizens, he tries to escape to Jellyfish Fields, which result in the townspeople chasing him, until Cannonball Jenkins's blast destroys the pants. | "The Sponge Who Could Fly" | ||
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Sir SpongeBob SquarePants | While in a jousting match, Patrick blocks SpongeBob's attack, which in return, flings Patrick out of the arena. SpongeBob yells out for Patrick, which makes the seahorse fling him out. The two fall into Bikini Bottomshire, which is medieval Bikini Bottom. After the fall, they are surrounded by horsemen before being arrested for the witchcraft act of falling out of the sky. | "Dunces and Dragons" "Back to School Season" | ||
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SquidBob TentaclePants | SquidBob originates after SpongeBob is teleported to the Krusty Krab using one of Sandy's inventions. Squidward had reached out his tentacle to open the door at exactly the same time, and accidentally puts his tentacle through SpongeBob's mouth. Sandy then teleports both of them back, causing them to be fused together. | "SquidBob TentaclePants" | ||
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Scary Mustache Guy | SpongeBob dresses up as the scary mustache guy in order to get Patrick to admit he stole Ol' Reliable. He tries to buy the net with a fake billion dollar bill, but Patrick refuses and says it is more important than money and it belongs to SpongeBob. This causes SpongeBob to take off his disguise, only to find out it was really a new net Patrick made for SpongeBob. | "The Pink Purloiner" | ||
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The Yellow Avenger | SpongeBob acquires Mermaid Man's powers when he wears his belt. Unfortunately, SpongeBob puts the Dirty Bubble into a washing machine, which causes him to split into countless Dirty Bubbles. SpongeBob has to stop villains such as Man Ray, Sinister Slug, Jumbo Shrimp, Atomic Flounder, and the Dirty Bubble, using Mermaid Man's powers to save Bikini Bottom. | The Yellow Avenger | ||
   
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Extreme Racer SpongeBob SquarePants | He looks like SpongeBob, except he is more hideous than him. One plays as him when SpongeBob is racing in "Diesel Dreaming". He goes up against Extreme Racer Patrick (aka Piston Patrick), Extreme Racer Plankton, and Extreme Racer Gary. He can also be seen in "Hypnotic Highway" on the DS version if the player chooses SpongeBob. He also has concept art in the game that can be bought in the store.
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Creature from the Krusty Krab SpongeBob Comics No. 2 SpongeBob Comics Special Edition "The Getaway" "Sea-Man Sponge Haters Club" | ||
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New SpongeBob SquarePants | He looks identical to SpongeBob, except he has oval-shaped eyes with rectangular pupils, a large droopy nose and a wider frowning mouth, making his face resemble Squidward's face. His clothes and face are messy. He also sounds a lot more like Squidward. | "Breath of Fresh Squidward" | ||
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Fry Boy | SpongeBob dresses up as Fry Boy to stop brainwashed Mermaid Man and Barnacle Boy from going to the Chum Bucket. He is unsuccessful, however, due to their ancient bodies being unable to digest the Krabby Patties he feeds them, and is trampled on by Mermaid Man and Barnacle Boy as he tries to stop them. | "Mermaid Man vs. SpongeBob" | ||
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CheeseHead BrownPants | The people in New Kelp City call SpongeBob by this name when they first meet him. CheeseHead is the mayor of New Kelp City and cannot remember anything or anyone in Bikini Bottom when he returns. | "What Ever Happened to SpongeBob?" | ||
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Normal SpongeBob SquarePants | After Squidward confronts SpongeBob to tell him that he is not normal, SpongeBob decides to change his personality, taking Squidward's advice. The personality change proves to be a success, but it eventually drives him apart from his friends and draws customers away from the Krusty Krab. As a result, Patrick helps SpongeBob utilize many abnormal tactics to help him revert to his old ways. | "Not Normal" | ||
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Short Order Boy | Short Order Boy and Pink Patty compete against the undefeated champions, Champ 1 and Champ 2, with Mr. Krabs as their manager. The two are reluctant to fight at first, but Krabs manages to convince them that their opponents are "pretending." | "Krusty Krushers" | ||
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SpongeBob RoundPants | SpongeBob behaves like he is a new employee at the Krusty Krab and asks for Squidward's help. Following Squidward, he starts copying the latter's actions, such as being rude to customers, throwing the trash out to the dumpster, sleeping in the bathroom or at the workstation, and even cooking Krabby Patties like Squidward (burning them). | "To SquarePants or Not to SquarePants" | ||
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ManBob | After Mermaid Man and Barnacle Boy are injured and sent to the hospital, SpongeBob and Patrick go to visit them. Mermaid Man and Barnacle Boy receive a call from the police commissioner, telling them that they will be celebrity guest contestants at the Bikini Bottom shuffleboarding competition. They are unable to attend in their condition, but SpongeBob then says both he and Patrick are certified Mermaid Man and Barnacle Boy impersonators. They are given rings that produce rubber Mermaid Man and Barnacle Boy costumes, and are told to immediately return them after the tournament. | "Shuffleboarding" | ||
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Frankenstein SpongeBob SquarePants | He looks similar to SpongeBob, wears a green shirt with light yellow gloves and has hair. He tries to save Bikini Bottom from turning into monsters. | FrankenBob's Quest | ||
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Duke Thomas Feathermuffin | When SpongeBob is teaching Mrs. Puff how to deal with manning the register at the Krusty Krab, SpongeBob disguises himself as the Duke. When he orders beans on toast, Mrs. Puff says it is coming right up, but he then responds by saying beans on toast is not on the menu. This was done as a test to see how she would respond in a situation like this. Mrs. Puff starts shouting at him, and Mr. Krabs comes out and says that the Duke is one of his regulars. Mr. Krabs then tells Mrs. Puff to not let it happen again. | "Summer Job" | ||
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Abrasive SpongeBob SquarePants | He has SpongeBob's face, but it is rough and green with bushier eyebrows. He is on SpongeBob's back. Gary orders an abrasive side so SpongeBob is finally able to say "no," but he just makes him say mean things. He is forced off of SpongeBob's back at the end of the episode by Sandy, and growls like a dog in anger. He is then shipped back to the manufacturer. | "The Abrasive Side" Super Brawl 3 Super Brawl 3: Just Got Real | ||
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Shelby Nautica | SpongeBob, dressed up as Shelby, is taken by Plankton to the Chum Bucket for a romantic date, with the plan being for them to make Karen jealous. However, after dinner and romantic talk, Shelby goes overboard and reveals her love for Plankton, making Karen accept that the two are in love. This causes Plankton to remind Shelby about the entire point of the plan, making Karen realize that Plankton does care about her. | "Plankton Gets the Boot" | ||
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Moldy Sponge | Mr. Krabs tells SpongeBob to take some moldy kitchen sponges out to the garbage. When he looks at the full moon while standing on a pile of moldy sponges, he transforms into Moldy Sponge. Mr. Krabs, mistaking him for an inanimate moldy kitchen sponge, then throws him in the dumpster. | "Moldy Sponge" | ||
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Super SpongeBob SquarePants | After Karen steals the cookie secret formula from Plankton, he and Patrick Man come to save the day. He returns the formula to Plankton while Patrick Man holds Karen up. SpongeBob gets the attention of the heroes, and Super SpongeBob SquarePants asks SpongeBob what the trouble is. SpongeBob then explains the story. | Bikini Bottom 2 | ||
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Flabby Patty Cook | The Flabby Patty Cook initially appears as an unnamed fry cook. However, towards the end of the episode, it is revealed that SpongeBob created the Flabby Patty in an attempt to bring Mr. Krabs and Plankton closer together by making them work together to steal his formula. It is also revealed that the fry cook is not a real fish, but SpongeBob in a disguise. | "The Other Patty" | ||
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Todd SquarePants | Star Rock Inn. | "Patrick's Staycation" | ||
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The Squish | When Mrs. Puff puts SpongeBob in the derby, Captain Lutefisk is unsure. After seeing what he can do, Lutefisk puts his sock over SpongeBob and inserts him into the derby. | "Demolition Doofus" | ||
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Secret Man | SpongeBob creates this superhero alter-ego in order to play as a superhero. After Wonderful Guy "saves" Squidward from his rigged mailbox, Secret Man suddenly appears and swings into Squidward's house, making Squidward decide to hide in his house until the two stop playing. He and Wonderful Guy then hear a cry for help, and it's revealed that Squidward has become the villain Mendu in order to drive away the heroes. | The Evil That Mendu! | ||
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Multi-Purpose Sponge |
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SpongeBob Comics Annual Super-Giant Swimtacular No. 2 SpongeBob Comics: Book 2: Aquatic Adventurers, Unite! | ||
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Invincibubble | Invincibubble and his team of superhero friends save the Krabby Patty secret formula from the greedy hands of Burger Beard, who uses a book to get the formula, since whatever is written in the book becomes real. Invincibubble can use his "wand" on top of his head to blow bubbles, as the "wand" has the advantage to cover the items. The strength of his bubble blast is so strong that he can use it to fly through the air, while carrying somebody. The bubbles can also be condensed and used as physical projectiles that inflict major damage on opponents. | The SpongeBob Movie: Sponge Out of Water | ||
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SpongeRobert SquarePants | SpongeBob still works at the Krusty Krab until he realizes how messy the customers eat their food. So SpongeBob quits his job. Later, he hangs with fancy fish and they have a formal party and watch The Table. He then says he wants to see The Mermaid Man and Barnacle Boy Movie and admits he works at the Krusty Krab, causing the fancy fish to leave SpongeBob. | "SpongeBob LongPants" | ||
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SpongeBob WormPants | Prickles enters SpongeBob's head while SpongeBob is sleeping. Prickles invites other worms to SpongeBob's body, with Gary kicking SpongeBob out of the house as a result. SpongeBob is also fired from his job, and Plankton, Patrick, and Squidward are unable to help. The amount of worms give SpongeBob a scary appearance, and SpongeBob refers to himself as this nickname, and laughs in the process, which drives the worms out of his body. | "House Worming" | ||
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Giant baby SpongeBob | When the Flying Dutchman enters SpongeBob's brain to see how scary it could possibly be, he is astonished by all of the things in one brain. He says he still is not scared and SpongeBob points out that naked baby pictures always scare him. Then, the giant baby SpongeBob appears and hugs the Flying Dutchman, who is terrified enough to get out of his ship, far away from SpongeBob. | "The Legend of Boo-Kini Bottom" | ||
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Sponge the Horse | He looks just like SpongeBob, but behaves more like a horse. Sponge the Horse appears in the last few minutes of the episode. At the end, he gives Squidward a ride back to the Krusty Krab. | "Pat the Horse" | ||
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Little Yuck | He is made of green filth. He has a banana peel on his head and has a leaf and a dollar bill stuck to his body. He goes around town with Filthy Muck. The pair leaves a huge stench everywhere getting the citizens of Bikini Bottom angry which causes them to form an angry mob. | "The Ballad of Filthy Muck" | ||
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SnailBob | SpongeBob slowly turns into SnailBob while Gary is taking care of him way too much. He stays at the house while Gary is ruining everything at the Krusty Krab and the patties. Mr. Krabs comes back to the house to snap SpongeBob out of his trance only for him to turn back to normal. | "Gary's Got Legs" | ||
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Chumta Claus | He debuts when chum is all around Bikini Bottom, spreading Chum Day cheer all around Bikini Bottom. He convinces them all to celebrate and honor the holiday, then after, he does a little speech with everyone throwing chum at him after. | "Plankton's Old Chum" | ||
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Cool SpongeBob SquarePants | Squidward hears SpongeBob continuously whistling during his job and becomes increasingly annoyed. As a result, he finds a way to counteract this problem by convincing him there's something wrong with the gap in between his teeth. Subsequently, Squidward performs dental work on SpongeBob which rids him of his tooth gap and gives him a deeper voice, ultimately transitioning him into Cool SpongeBob. | "Mind the Gap" SpongeBob Adventures: In a Jam | ||
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Lady glove | She is a large white glove. SpongeBob and Plankton disguise as a female glove to distract the Chum Bucket glove. | "Handemonium" | ||
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SpongeGar SquarePants | This is SpongeBob's costume for Prehistoric Kelp Forest in The Cosmic Shake. | The Cosmic Shake | ||
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Squarebeard | Used when he, Patrick, and Sandy try to earn their pirate badges. | "Camp Crossbones" | ||
 
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Tooth Fairy assistant | He and Patrick assists Dorsal Dan when they think he is the Tooth Fairy and they later become assistants of the actual Tooth Fairy. | "Ain't That the Tooth" | ||
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Sponge-O the Incompentent | He wears blue makeup, pink hair, pink dress, and pink shoes and socks. When Mr. Krabs sabotages the circus, SpongeBob discuses as that alter-ego for a circus act. For the first act, he has SpongeBob use a unicycle on a tightrope. SpongeBob is surprisingly able to keep his balance, and when Krabs tries to sabotage it by throwing urchins on him, he bounces off the net and into the audience. | "Big Top Flop" |
