SpongeBob SquarePants

Dr. Peter Lankton

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Hope? Hope? When I get my hands on that formula, there won't be any hope for any of you! Yeah, I mean... you'll be cured in no time.
— Dr. Peter Lankton, "Fear of a Krabby Patty"
Peter Lankton
Residence: Bikini Bottom, Pacific Ocean
Occupation(s): Psychiatrist
Aliases: Sheldon J. Plankton
Dr. Lankton
Dr. P. Lankton
Physical appearance
Gender: Male
Color: Deep green
Eye color: Light yellow and red
Classification: Plankton
Series information
Appearance: "Fear of a Krabby Patty"
Portrayer: Mr. Lawrence
List of characters

Dr. Peter Lankton is an alter-ego of Plankton who appears in the episode "Fear of a Krabby Patty."


He is the same form as Plankton, but has a large beard, a light orange-yellow waistcoat, and a white shirt.


When SpongeBob thought he was seeing killer Krabby Patties, he went to go see Dr. Lankton. He was actually trying to get SpongeBob to tell him the secret formula.


  • The name Peter Lankton, has the "P" removed from "Plankton" and made into Peter.

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