User blog comment:VeryUnknownFan/The Seasonal Rot of Total Drama Action (Part 2)/@comment-4742462-20141124045727/@comment-4389268-20141125080346

a filler is an addition scene or episode of a show/book/game in a different adaption (many anime) normally to expand a certain character development (many moments involving Hinata in Naruto) or just to delay the progress while the original story continue (Between the original Naruto and Naruto shippuden got about 70 filler episodes) or just to make in video game situation, just to prolong it. An example are video games based on movies like Lord of the Rings Two Towers where the players need to fight trolls in Fangorn Forest which didnt happen in the movie. Filler characters are characters who never appear in the original but yes in the adaption. I;ll give one from Naruto but there are too many to remember.