|Education:||Mrs. Puff's Boating School|
|First appearance:||Ripped Pants|
|List of characters|
Clayton "Clay Fish" is a blue fish with 3 dark blue stripes on his back and a red swim pants that makes many cameos in some episodes.
- Ripped Pants- he debuts few cameos in Goo Lagoon.
- Hall Monitor- his name was revealed on Mrs. Puff's student list.
- F.U.N. - he appears grey as a cowboy.
- Prehibernation Week - he makes 2 cameos; he checked for SpongeBob in a sulfuric field pipe; he also showed Sandy a cereal box saying he found "Squarebob" instead of SpongeBob.
- Imitation Krabs - (cameo) he sits frozen in his table/chair when penny goes in Mr. Krabs' office.
- Wormy - he ran shocked in Bikini Bottom downtown.
- Patty Hype - (cameo) he was cheering "PRETTY PATTIES!".
- Grandma's Kisses - He, Martha Smith, Harold, Charlie and others were rude to SpongeBob about his grandma kissing him on the forehead.
- Pickles - he was ordering while Squidward was talking rude to him.
- Band Geeks - he appears green as the member of the audince and at Squidward's band class.
- The SpongeBob SquarePants Movie- he appears to be a slave of Plankton.
- As Seen On TV - he was a camera crew.
- Model Sponge - he was a camera crew.
- SpongeBob's Last Stand - he appears to be with other fish.
- SpongeHenge- (cameo) seen first in line.
- Stanley S. SquarePants - (cameo) he briefly waits hungry and impatient in line after Stanley leaves
- Fungus Among Us - (cameo) he is seen eating Krabby Patty with fungus.
- Hall Monitor
- Ripped Pants
- Imitation Krabs(confirmed to appear in the brief cameo background)
- Walking Small
- Bubble Buddy
- Patty Hype
- PreHibernation Week
- Band Geeks (Appears Green ,Cameo)
- Krabs a la Mode
- The Two Faces of Squidward
- SpongeHenge (cameo, seen in line first)
- Stanley S. SquarePants(cameo)
- Pest of the West
- Pets or Pests
- Greasy Buffoons
- Model Sponge (Crowd only)
- Truth or Square
- Chum Bucket Supreme
- Enemy In-Law
- A Life in a Day
- SpongeBob's Last Stand
- The Cent of Money
- The Spongebob Squarepants Movie
- Fungus Among Us
"NO WAY MRS.PUFF" (Voice Only)
"YEEEEEE HAWW!"--Cowboy Clayton
"HEY SPONGEBOB?!" AT LEAST I HAVE MY PERSONALITY
"I FOUND SQUAREBOB"
"I WANT PATTY SKATES"
"(Country Accent) YOU TRYING TO KILL US?!"
"WHICH IS NOW IN SHELL CITY, GOODBYE" (Plankton inpersonation)
"YESSSS, NOOOO" (Along with other fish)
"HANDSOME" (Along with other fish)
"COM'ON" (In front of deep line after Stanley leaves)