In the episode, "Plankton's Army" Plankton announced his full name once he got to the secret formula. He said, "I, Sheldon Jay Plankton," So his middle name must be "Jay".
However, if you look at the transcript for the epison, Plankton says, "Sheldon J. Plankton." Therefore, his middle name is not mention, but his middle initial is "J."
Sheldon Plankton and he gets very, very mad at Karen when she calls him Sheldon
Hoped this helped!
In the episode "Plankton's Army," Plankton's real name is yes, Sheldon...lol
His last name is Plankton and his first name is Sheldon.
Plankton's full name is Sheldon Jackson Plankton.
Plankton's first name in Spongebob is Sheldon.
He is referred to by his nickname, Shelly, in some episodes.
Plankton's full name is Sheldon J. Plankton Jr.
The answer is unknown since Sheldon aka plankton only says “j”. I think the reason is that plankton is scared to say his last name for it might be a girl name, for exampl: juliet
He does not have a middle name.
Keith's middle name is Ronald.
he has no middle name
Her Middle name is Dakota. Her First name is Hannah. Hannah Dakota Fanning.But She is called by her Middle name Not First Name
Harry Style's middle name is Edward.
planktons middle name was never identified, but is recognized as Sheldon J. plankton.(J. was never discovered as a full middle name) i think it was used to make the name fit better and sound better.
Plankton is his last name. His full name is Sheldon J. Plankton.
they feed on planktons. The planktons which serve as their food filters the water that enters to a porifera's pores and this microorganisms (planktons) serve as their food.
Holoplankton and meroplankton are types of planktons found in the oceans. Holoplankton are planktons for their entire lives, while meroplanktons are planktons for only part of their lives.