Encyclopedia SpongeBobia
Encyclopedia SpongeBobia
This is the page about the baby. For other uses, see Billy (disambiguation).
Not to be confused with Incidental 41 as a baby.

Billy[1] is a baby fish who makes a few cameo appearances throughout the series, starting in the episode "Goo Goo Gas."


Billy is a light yellow fish, with blue eyes. He wears a wavy purple bonnet and a white diaper. He also sucks a pale-red pacifier.

Role in series

"Goo Goo Gas"

Billy is seen with Incidental 45 at Barg'N-Mart, sitting in a shopping cart while his mother shops. He is later insulted by Plankton, which causes Incidental 45 to run over Plankton with her shopping cart twice.

"Slide Whistle Stooges"

He is with Incidental 47.

"Free Samples"

Incidental 45 holds him during the riot. He appears again later in the episode when Incidental 45 tells him to look at Squidward while he is dancing in a monkey costume.

"It Came from Goo Lagoon"

He is with Incidental 7.

"Two Thumbs Down"

He is with Incidental 14.

"The Getaway"

He appears with Incidental 104, who is hanging clothes, when SpongeBob and Sticky Fins Whiting crash through.


  1. ^ "Free Samples." SpongeBob SquarePants. Nickelodeon. DATE. Television.