The Plankton Family is a family that goes on for generations that eventually all relate to the main and evil character Sheldon J. Plankton.
|Planktonamor||Karen the Crystal Ball|
|Dead Eye Plankton|
|Grand Dad Plankton||Ella Plankton||Moe Bros||Alvin|
|Silas Plankton||Gordon Plankton||Mama Plankton||Fredrick||E.M.I.L.P.|
|Clem and other Cousins of Sheldon||Sheldon J. Plankton||Karen Plankton|
Sheldon J. Plankton
Karen Plankton is Plankton's wife. She is always nagging about Plankton not getting the Krabby Patty.
Clem is the main cousin of Plankton. He is a hillbilly and he has hole in his hat for his antennae. It was mentioned that he can't read.
Plankton's Cousins include:
- Clem Plankton
- Zeke Plankton
- Rufus Plankton
- Jeke Plankton
- Billy Bob Plankton
- Billy Jim Plankton
- Billy Billy Bo Willy Banana Fana Fo Filly Plankton
- Toad Plankton
- Enis Plankton
- Doug Plankton
- Leisha Plankton
Planktonamor is a medieval ancestor of Plankton, who's an evil wizard that appeared in "Dunces and Dragons." He was the owner of the medieval King Jellyfish, who he would send out to destroy the town unless King Krabs gave him the power. After kidnapping Princess Pearl, SpongeBob was sent out to fight him to the death, winning by stepping on him.
Papa Plankton is Plankton's father who only appeared in the book Hooray for Dads!. Mr. Plankton also was mentioned in "Frozen Face-Off" when Plankton said, "Dad was right, I should've minored in business administration."
Grand Dad Plankton
Grand Dad Plankton is Plankton's grandfather who was seen in "One Coarse Meal." Plankton saw him when he dreamed of being eaten by Pearl. From the fact that Plankton saw him in a whale's stomach, he was probably eaten by a whale.
Ella "Gram Gram" Plankton
Dead Eye Plankton
Dead Eye Plankton is Plankton's western ancestor, who's an outlaw that was only seen in "Pest of the West." Everyone in Dead Eye Gulch is afraid of him. He brought down from power when SpongeBuck SquarePants stepped on him.
Fredrick is Karen's father and Plankton's father-in-law. He tends to like drinking English tea, but not to like the husband his daughter married, Plankton. He has not appeared in an actual episode, but is a character that won in a contest in Nick Magazine. He has only made an appearance in the December 2009 issue of Nick Mag.
E.M.I.L.P. is Karen's mother and Plankton's mother-in-law. Like Fredrick, E.M.I.L.P. doesn't like Plankton, saying that she wished Karen married an ATM, a person with money, instead of him. She physically appears in "Single Cell Anniversary" after Karen short-circuited. She is just like her husband Fredrick.