Impostor SpongeField (also known as PlankNermal GangNumber) (TheSpongeBobandLoudHouseFan20007isG*y) is one of the recurring villains in the MPM franchise, as well as part of the Impostor Balloonatics group.
He is a gangster who likes to torture SpongeField and mess up wiki pages like Spider-Man for example. He also likes graffiti, and gets enjoyment from spraying rather vulgar words on stuff like buildings and walls. Usually, if he's making SpongeField's life miserable, a Balloonatic will come to the rescue and shoo his impostor away. If something doesn't go his way (ex. A balloon of Plankton doesn't debut in the parade or SpongeBob doesn't get removed from the parade) he acts like a whiney and immature baby.
Impostor SpongeField is similar to his good counterpart, but with the exception of the following:
- He wears sunglasses.
- He has a golden tooth.
- Instead of the Macy's star pin, he wears a chain necklace that says "Suck It".
- The SpongeBob hat is replaced with a Plankton hat.
- The Garfield ears are grey (like Nermal) instead of orange.
- The Woodstock is dark red instead of yellow.
- He wears longer red socks.
- His pants have numbers instead of letters.
- His shoes are light blue instead of grey.