200px-Plankton spongebobPlankton is a mean single-celled organisim who is Mr. Krabs' mortal enemy and is always trying to steal the Krabby Patty secret formular. He has a robotic wife and lives in his failure of a resturant called the Chum Bucket, where he sells the inedible creation that is the Chum Stick. He and Mr.Krabbs were childhood friends who created the Krabby Patty together, but Plankton's greed drove them apart and they are now mortal enemies. He was made by N ickeloadeon Productions and first appeared in Plankton in 199