Which characters from a books would you be willing to sacrifice in show adaptation and why?

If the Eragon Disney series eventually happens, which side characters from the book series—though interesting—would you be willing to accept not being portrayed? As we've seen with other book-to-screen adaptations, some characters may inevitably be left out ( because buget, length etc) For instance, characters like Elva, Jeod, Sloan, and Blödhgarm could potentially be excluded without major consequences to the core storyliny regardless of popularity of fanbase.