Billy (green fish)
Billy (lime fish) (Born July 18, 1996) is a male citizen that makes any cameos in each episodes. He wears a golden t-shirt with a red stripe on it.
Appearances
Ripped Pants - (cameo/debut), background appearance, etc.
Walking Small - His name was revealed by his mom Evelyn.
Pickles - He appears to escape the Krusty Krab with his parents, Martha &Lenny.
F.U.N. - He attends movie theater.
Valentine's Day - He attends carnival boardwalk.
Employee of the Month - (cameo)
Neptune's Spatula - (2 cameos) He was at museum. He appears deep in crowd of audience.
Something Smells - He attends movie theater.
Bubble Buddy - He debuts visiting beach.
Wormy - (cameo) Running shocked in downtown.
Patty Hype - (cameo/debut) Deep in big line of other fish.
I'm Your Biggest Fanatic - (cameo) He was Nathiel's son.
The Smoking Peanut - Running away with his uncle Lloyd.
The Fry Cook Games - (cameo) He attends a cool event.
Squid on Strike - Having a female voice seen with Sandals.
Sandy, SpongeBob and the Worm - He shows along with Charlie, Evelyn, Fred, and others.
SpongeGuard on Duty - He attends Goo Lagoon.
My Pretty Seahorse - debut
The Bully - debut
Mermaid Man & Barnacle Boy IV - (cameo/debut) Shown black inside of jar.
As Seen On TV - (cameo)
Party Pooper Pants - Seen blue along with Halbert.
Superfriends - (cameo) deep in line.
Clams - (cameo)
The Great Snail Race - (cameo) deep in audience.
Born Again Krabs - (debut) appears to celebrate.
I Had an Accident - (cameo) deep in line.
Krabby Land - He was seen as a child.
The SpongeBob SquarePants Movie - He appears light navy & grey as a member of audience.
Krabs vs Plankton - He attends court.
Good Neighbors - (2 debuts) Seen in downtown. Seen around in Squidward's house.
Dunces and Dragons - (debut)
SquidBob TentaclePants - He attends clarinet recital.
Once Bitten - It was revealed as a zombie.
Wigstruck - He was at movie theater.
Driven to Tears - (debut)
Rule of Dumb - (cameo/debut) waiting in Patrick's line.
Best Frenemies- Kelp Shake restuarant customer.
The Pink Purloiner - He was a bus passenger.
Best Day Ever - He attends the best day ever event.
Friend or Foe? - He was seen as a kid.
The Original Fry Cook- (cameo)
Fungus Among Us - He was seen fungusy in the krusty krab.
Roller Cowards - He was a Glove World customer / tourist.
The Krusty Sponge - (3 cameos) He leaves the Krusty Krab & returns. He waits in line. He attends courthouse.
A Flea in Her Dome - (cameo) Trapped in Sandy's Treedome @ the end.
Goo Goo Gas - (cameo)
Le Big Switch - (debut)
Mermaid Man vs SpongeBob - (debut) He attends the krusty krab party.
Pest of the West - (cameo/debut)
The Battle of Bikini Bottom - (cameo) He occupys his own personal teenage battle.
The Two Faces of Squidward - (debut) He was looking, taking photos, etc.
Banned in Bikini Bottom - It was revealed that he was one of the Secret Krusty Krab customers.
Stanley S. SquarePants - (debut) Deep in line.
Spongicus - (cameo/debut) He attended chum colosium.
Suction Cup Symphony - He attends Squidward's concert.
Gone - (debut) deep in crowd of SpongeBob.
Slide Whistle Stooges - He and everyone else chase Squidward for annoying people.
A Life in the Day - (debut) he attends Goo Lagoon.
Sun Bleached - (2 debuts) he attended Goo Lagoon. He was at tanning party.
Giant Squidward - (cameo) he chased Squidward.
No Nose Knows - (debut) he escapes the krusty krab. (not seen)
The Patty Caper - (debut) in line.
The Krabby Kronicle - (cameo/debut)
The Slumber Party - (cameo) he was at Pearl's slumber party beach.
SpongeBob vs the Big One - he debuts in the beach at the end.
Choir Boys - (cheering deep in audience) but heard only.
Krusty Krushers - he attends Bikini Bottom wrestling.
To SquarePants or Not to SquarePants - he was in deep line.
Shuffleboarding - (cameo) he popped out of jail.
No Hat for Pat - (debut) he & others approach on Mr. Krabs.
Sand Castles in the Sand - he attends Goo Lagoon. (debut)
Chum Bucket Supreme - he was one of Plankton's customers.
Single Cell Aniversary - (cameo)
Truth or Square - he debuts and makes a cameo in krusty krab celebration event.
Chum Caverns - he briefly debuts in elevator line.
Clash of the Triton - (debut)
Tentacle-Vision - (cameo) only on TV.
Stuck in the Wringer - he attended Glove World.
Greasy Buffoons - (debut) in line.
Model Sponge - (cameo)
SpongeBob's Last Stand - (debut) in action to save Jellyfish Fields.
The Play's The Thing - (cameo/debut)
Rodeo Daze - (debut)
The Cent of Money (cameo) he was an arcade visitor seen in the background with Evelyn & Nathiel.
SpongeCano - (debut)
Tunnel of Glove - He attends
Love That Squid