Sheldon J. Plankton is a main character and a survivor of the outbreak in TNT's "The Spongebob Dead".
Plankton is described as "weak, short-tempered, bipolar and scared. Plankton hasn't lost lots through the seven seasons he was on the show apart from his computer wife Karen who died from unknown causes after the events of Mystery and before Scientific Analysis of the Fifth Kind.
Before the Apocalypse, Plankton worked as an unpopular boss at The Chum Bucket. He loathed his job and tried to steal the Krabby Patty Secret Formula 59 times to try and be successful only to end in major failures.
Plankton appears briefly only in the Season 1 Finale tagging along with Spongebob and the others to survive as the dead begin to take over.
Plankton was a little more ready by the time Season 2 was released and his choice of weapon was a handgun. Plankton sided with Squidward to kill Squilliam after Squilliam and his military troops attacked them and Plankton feels responsible since he saw them afar with his binoculars. When Squilliam died indirectly to Mr.Krabs, Plankton was angry because, Krabs started becoming even jerkier than him.
Plankton tried to help out his group fight off a zombie herd that broke into Squilliam's former Mansion's property but he got stepped on by the zombies and died. Mr.Krabs met his demise soon after.
This list shows the victims Plankton has killed:
- Pearl (Indirectly Caused)
- Military official (Indirectly Caused)
- Squilliam (Indirectly Caused)
- A few zombies.
Killed by : Zombies(alive)
- Plankton tried to help out his group fight off a zombie herd that broke into Squilliam's former Mansion's property but he got stepped on by the zombies and died.