List of Alter Egos
This is a page for all the Alter Egos in the Series:
Fry Boy is an alter ego of SpongeBob SquarePants. He wears a superhero suit with two spatulas put in his belt. He has hair (which is weird, because SpongeBob doesn't usually have hair) and is able to throw Krabby Patties into someone's mouth. He was able to unhypnotize Mermaid Man and Barnacle Boy with Krabby Patties (and a hint of fiber). His alter ego of Fry Boy only appears in Mermaid Man vs SpongeBob.
 Normal Squidward
Normal Squidward is an alter ego of Squidward. When Squidward gave SpongeBob advice of being more normal than he is, he decides to follow his advice. At the end of the episode he is also Normal and the shock turns Normal SpongeBob back to old SpongeBob. Normal Squidward, the Alter Ego of Squidward was and is ever seen in the episode Not Normal. Normal Squidward's looks, look very very different to the one's of Squidward. He has a smaller nose, pants, a black belt, smaller eyes and he has a smaller T-Shirt.He is actually nicer when he is normal.
Normal SpongeBob is an alter ego of SpongeBob. When Squidward gave SpongeBob advice of being more normal than he is, he decides to follow his advice. He started to talk normally, do work normally (by bringing a cubicle and computer to work and printed out paper Krabby Patties), and did normal things. Squidward started to appreciate Normal's work. SpongeBob has a name tag with the name "Normal" on it. As the days went by, his face started swelling, and his face soon became clear of any craters and freckles. But it changed Normal's life too much. He lost his job at the Krusty Krab, his best friend Patrick, and eventually became too normal for Squidward. With the help of Patrick, and eventually Squidward, he became un-normal again. Normal SpongeBob, the Alter Ego of SpongeBob was and is ever seen in the episode Not Normal Normal's features are clear of any craters and freckles. He started to look like Mr. Normal on the video "How To Be Normal For Beginners", except shorter.People who are normal have normal attitudes. This is shown in the commercial at the beginning of the episode.
 SpongeBob FancyPants
SpongeBob FancyPants was a new name Sandy called SpongeBob when he wore his RoundPants when nobody could recognize SpongeBob. It has been a while since he was called this since Tea at the Treedome by Patrick.
SpongeBob RoundPants was the new name of SpongeBob when he got himself new pants that were round. He showed them to Mr. Krabs, Patrick, Sandy, Squidward and many other people. Nobody recognized him with the round pants. This might be because round pants is a different shape then square pants, but Sandy called SpongeBob " SpongeBob Underpants" at the end of the episode.
Smelly is an alter ego of Squidward in the episode The Thing. He was covered in cement on a bike ride. He ended up with a leaf on his head and waddled around in Jellyfish Fields. SpongeBob and Patrick raised him as a pet, having no idea that he was Squidward. But he was taken to the zoo. SpongeBob and Patrick rescued him, and found a bunch of creatures that looked like him. So they left "Thing" with them. The cement wore off, and crackled off of him.
ManBob is an Alter Ego of SpongeBob SquarePants. He just appeared in the episode Shuffleboarding, with Patrick Star as "PatBoy".
 Santa Claus
Santa Claus is an Alter Ego of Squidward Tentacles in the episode: Christmas Who?. Squidward dresses up as Santa Claus, after the real Santa does not attend the Bikini Bottom's Christmas celebration, in order to cheer SpongeBob up. Unfortunately his plan goes awry when the citizens come happily and demand gifts from him. Squidward, dressed as Santa, is then forced to give away his house supplies as Christmas gifts until he has nothing left, but also in the process shares Christmas spirit (as said by the REAL Santa).
SpongeBob's "Great-Grammyma" is an alter-ego of Plankton in his attempt to steal the Krabby Patty formula. Plankton steals his grandma's clothes and hair to look like a grandma and tricks SpongeBob into thinking that he is SpongeBob's great "Grammyma". After doing lots of things together, Plankton almost gets the formula but Plankton's grandma confronts him for stealing her stuff and takes Plankton away. It just appeared in Gramma's Secret Recipe.