Non-Canon

What is filler?
Fillers are extra things added into the original storyline, database and characters.

A filler can take the form of:
 * A Game
 * A Movie
 * A Special episode made for TV
 * An extra storyline made for the show

How do fillers work in One Piece?
In anime, fillers are there to fill out a series when the anime catches up to the storyline in the manga. Anime can easily catch up to the manga because a single anime episode can cover more than one manga chapter. Since the One Piece manga comes out weekly, this creates problems; the anime cannot get ahead of the manga at any one point.

In One Piece, fillers take form of:


 * History on the characters that were never featured in the manga.
 * Scenes taking longer than they did in the manga.
 * Extra storylines that were not part of the original.

In One Piece, unlike many other series, many of the characters are designed by Oda himself. Some of the stories, such as the Loguetown arc fillers, were ones Oda himself wanted to include in the manga, but didn't in order to move the storyline along faster.

Did Oda have any part?
Despite the fact that some characters only appear in the anime, Oda has designed many of them for Toei (anime) and Bandai (video games).


 * Oda provided character designs for the Movie 1 characters. Sketches of these can be found in one of the early volumes.
 * A novelization of the Loguetown arc written in 2000 had the story of Usopp's encounter with Daddy Masterson and his daughter Carol, explaining where he got his goggles. Oda stated that he did want to include this story in the manga but could not due to the pressure to start the Grand Line story around chapter 100.
 * The character Musshuru was created by Oda for the 9th One Piece movie as Wapol's brother. Due to many of the other changes in the story, including the inclusion of Robin and Franky to the story of the discovery and joining of Tony Tony Chopper, it cannot be considered canon in the continuity.

Is Filler treated the same as Canon?
Filler information is not always correct so it is treated somewhat differently.


 * Chopper ate many Rumble Balls during the filler Davy Back Fights, but in the manga it was stated he could not eat three without being caused problems.
 * Zoro stated he could cut anything during the Warship Island Arc, yet during the Arabasta Arc, he stated that he could not cut steel.
 * In the anime, Coby and Helmeppo went through the Reverse Mountain, but in the manga, they went through the Calm Belt to reach the Grand Line. However, in episode 315 of the anime Coby and Helmeppo explain to Luffy that they actually did go through the Calm Belt with new technology created by a scientist in the marines.

If filler information is to be included on a page, it needs to be treated appropriately. Simply writing (Note: Anime Only) is appropriate handling of the information. Filler information may be treated as speculation if not handled correctly, so it is advised that you take time thinking about how to approach it before including it on a page.

Overall, unless the manga mentions something that appeared in a filler episode, adding filler information should be avoided at all costs. Filler information should never be used on personality, history or relationship sections of a character's page.