Billy (green fish)
Billy (Born July 18, 1996) is a male lime green fish 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
Sun Bleached
Giant Squidward
No Nose Knows
The Patty Caper
The Krabby Kronicle
The Slumber Party
SpongeBob vs the Big One
Choir Boys - (cheering deep in audience) but heard only
Krusty Krushers
To SquarePants or Not to SquarePants
Shuffleboarding
No Hat for Pat
Sand Castles in the Sand
Chum Bucket Supreme
Single Cell Aniversary
Truth or Square
Chum Caverns
Clash of the Triton
Tentacle-Vision
Stuck in the Wringer
Greasy Buffoons
Model Sponge
SpongeBob's Last Stand
The Play's The Thing
Rodeo Daze
The Cent of Money
Tunnel of Glove
Love That Squid