Carol (Inc 22)
Jennifer - Millie is a beige fish that makes many cameos in each episodes.
Appearances
Ripped Pants - (debut) she makes a first appearance and especially her first role where she told SpongeBob she forget to put herself a screen.
SpongeBob's Last Stand - her name is mainly revealed from camera fish Bill.
Christmas Who? - she wished for hairstyle for her exclusive gift.
Bossy Boots - she was married to Fred in car.
The SpongeBob SquarePants Movie - she briefly appears light brown.
Once Bitten & SpongeBob vs. The Patty Gadget - she makes a cameo appearance along with Sally, Charlie, and Lenny.
SquidBob TentaclePants - she appears in Squidward's dreams along with Tina, Abigail, Vera, and others.
The Two Faces of Squidward - she was a nurse at hospital.
Shellback Shenanigans - she also appeared to be a nurse where Plankton was tricky and disguising to Gary.
Appearances
Ripped Pants (debut)
Patty Hype
Quotes
That's ashamed old man sold The Krusty Krab.
THEY MATCH OUR PURSES! (along with Evelyn and Sadie)
Oh', So Leathery!