Seymour

Seymour Plankton is the great grandfather of Sheldon J. Plankton. He is the husband of Basia and the father of Alvin, the Moe Bros, and Ella.

Description.

Seymour is a plankton with six arms, two long antennae, a large bushy eyebrow, has one eye like his great grandson, has two buck teeth, a pipe, and holds a pitch fork.

Biography.

At some point, Seymour married Basia.

Later, they were run out of their hometown for evil scheming and had to move to Switzer City after they got kicked out of Bikini Bottom according to Plankton.

There, they had Alvin, the Moe Bros, and Ella.