If that's how you treat the elderly, then I will never eat another Krabby Patty in here again!
— Incidental 13, "Senior Discount"

Incidental 13[3], also known as Incidental PM9[4] is a light green fish who often makes cameo appearances, and is often seen with Incidental 12. He is classified as a "inbetween" type incidental.


He is a light green colored fish who has olive green fins and orange eyes. He wears dark blue shorts with a white flower design. In his older appearances, he had scales under his arms, appeared to be a bit more potbellied, and wore small black shoes instead of being barefoot.

Incidental PM9

He is a patty monster with a light teal fins and lips, He also has a few hair strands, visible nostrils, and one sideways eye.

Role in series

"Hall Monitor"

He and Incidental 12 are first seen together as a couple and they are eating seaweed medley soup together until getting their dinner interrupted by the Open Window Maniac.

"The Fry Cook Games"

He is the referee of the Fry Cook Games.

"Mermaid Man and Barnacle Boy V"

There were two of him seen in line.

"Hocus Pocus"

He appears as an actor on T.V. with puffy blonde hair at the beginning of the episode.

"The Great Snail Race"

He is the referee for the race and shows up when the race begins and ends.

"Plankton Gets the Boot"

After Plankton tries to apologize to Karen, he assumes that he was apologizing to him and tells him he accepts his apology, though Plankton then tells him he wasn't talking to him which causes him to step right on Plankton.

"Senior Discount"

He claims that he will never eat at the Krusty Krab ever again after Mr. Krabs threatens to kick Old Man Jenkins out of the Krusty Krab.

"Boss for a Day"

He is seen sipping a soda at the Krusty Krab. He starts whining that he is still thirsty after he finishes his entire soda causing Mr. Krabs to get him another one and swiping a dollar out of his pocket due to the Krusty Krab not allowing free refills.

"Krusty Koncessionaires"

He is seen in the audience at the Low Tides concert.


  1. ^ The Great Snail Race
  2. ^ Hocus Pocus
  3. ^ Incidental Model Sheet 1
  4. ^ Krabby Patty Creature Feature storyboard
Community content is available under CC-BY-SA unless otherwise noted.