The "K" incidentals are a group of kid fish that were designed for the episode "Friend or Foe." The "K" likely stands for kid and there are six "K" incidentals in total.
Names[]
- In "Penny Foolish," Incidental K1 is named Billy.
- In "Friend or Foe," Incidental K4 is named Big Johnny.
Description[]
Each "K" incidental has its own appearance.
Incidental K1[]
He is a lavender fish with pale lavender fins, a dark purple dorsal fin, and blue lips. He wears a blue and white colored cap and a red T-shirt.
Incidental K2[]
She is a pink fish with orange fins and hair. She wears a purple dress and headband and has braces.
Incidental K3[]
His appearance is based on Incidental 6. He is an olive-green kid fish with a greenish-yellow dorsal fin. His eyes are much smaller, his arms and legs are olive-green, and his lips are yellow-orange. He wears a purple polo shirt over a white undershirt.
Incidental K4[]
He is a lime green fish with acne, a dark green dorsal fin, and orange lips. He wears a white T-shirt and light blue shorts.
Incidental K5[]
His appearance is based on Incidental 68. He is a kid fish that resembles Incidental 68 with the differences being his shorter height, his lack of pants, the lack of lining on his legs, the shorter light indigo lip flaps, rounder eyes, indigo arms, and a neon blue outline on his dorsal fin.
Incidental K6[]
He is an egg-shaped lavender fish with dark purple lips and a pale lavender dorsal fin. He wears a white T-shirt and brown shorts with a black belt. He also wears a red and blue beanie with a yellow propeller.
Role in series[]
They were mainly designed to be the old classmates of young Mr. Krabs and Plankton during their past in "Friend or Foe." Most of them acted as bullies that constantly picked on young Krabs and Plankton. They are normally portrayed as kid fish in other episodes after "Friend or Foe," but have also been portrayed as teenagers in some of their appearances as well. They are not too commonly used in the series.