John Plankton

John Plankton helped Plankton to steal the formula. He was appeared in the episode, Making the Plan.

John was working on evil plans and evil items, like Marian, that works to steal the formula and help Plankton.

John are has very friendships look like with Marian, Mickey, Plankton, Karen and the other cousins.

Friends
Plankton

Karen

Marian Plankton

Mickey Plankton

Enemies
SpongeBob

Mr. Krabs

Squidward

Fred

Nat

Harry the Fish

Harold "Bill" Reginald

Trivia
John has very friendships.

John works on evil plans and items, like Marian, that works to steal the formula and helping Plankton.

Also with Marian and Mickey, his actor is unknown.