Character Gallery Basia is the paternal great grandmother of Sheldon J. Plankton, the maternal grandmother of Gordon Plankton and Silas Plankton, the mother-in-law of Grand Dad Plankton, and also the grandmother-in-law of Mama Plankton. She appears in the comic A Plankton Family Tree. Description She is an old kind of plankton with four curled arms and legs, white hair, and stooped posture. Biography At some point, she married Seymour. Later, they were run out of their hometown for evil scheming and had to move to Bikini Bottom. Here, they had Alvin and Lily. Role in comic She is a representation of Plankton's family tree. Plankton (V • E) Sheldon J. Plankton • Clem • Billy Jim Plankton • Joe Plankton • Billy Bob Plankton • Rufus • Billy Billy Bo Billy Banana Fana Fo Filly • Doug • Enis Plankton • Fletcher McGee • Rainchild • Jeke • Flem • Julio • Timmy • Zeke • Dream Plankton • Sheldon J. Plankton (Mr. Plankton's Universe) • Gordon Plankton • Lily Plankton • Plank-Ton • Basia • Alvin • Silas Plankton • Planktonamor • Dead Eye Plankton • King Plankton (character) Retrieved from "https://spongebob.fandom.com/wiki/Basia?oldid=2199888" Categories: Characters Characters with one appearance Female characters Plankton Book characters Non-series characters Plankton and Karen's family Comic book characters Community content is available under CC-BY-SA unless otherwise noted.