Rainchild is one of Plankton's cousins. He appears in the episode "Plankton's Army" and is a boss in the video game Plankton's Robotic Revenge.


He is a light blue plankton with 6 light teal spikes on his head. Like all other plankton, he is small and he has one eye. His eye color is light yellow with a black pupil. He also has buck teeth.

Role in series

"Plankton's Army"

When Plankton calls his family to help him obtain the Krabby Patty secret formula, Rainchild along with many other of Plankton's relatives show up. They then get the fake formula, and upon seeing that the secret ingredient is plankton, they all run out of the Krusty Krab.

Plankton's Robotic Revenge

He is the first boss that appears in Dutchman's Triangle and he is in a robot suit. After defeating him, SpongeBob and the gang get one of the three keys and they continue their adventure to Rock Bottom.


SpongeBob, Patrick, Camera, and Cheese Fizz
"Patrick! You're spraying the camera with Cheese Fizz!"

This gallery contains low quality images. At Encyclopedia SpongeBobia, we strive to have the best and most quality-rich content. You can help Encyclopedia SpongeBobia by uploading higher quality versions of the images in this gallery.

Idiot Box 142
"It's about... imagination."

This gallery is in need of one or more images. Please help Encyclopedia SpongeBobia by adding more images. See ESB:Episode galleries for more information.
Please remove this message when finished.

Plankton (VE)

Sheldon J. PlanktonClemRufusRainchildSheldon J. Plankton (Mr. Plankton's Universe)Gordon PlanktonLily PlanktonBasiaAlvinSilas PlanktonPlanktonamorDead Eye PlanktonGrand Dad PlanktonGreen PlanKrabIdeal PlanktonCousin MarvinDream Lily PlanktonMama PlanktonMoe BrosPlanKrabPlankton zombiesPlanktonamorRed PlanKrabSeymourSheldon J. Plankton (Bikini Bottom 2)

Community content is available under CC-BY-SA unless otherwise noted.