An idea here is to make sub-sections for Quest NPCs, Vendors etc. They can be listed to the left or so. Or, they can have their own TR in ALL titles.
!Use only ONE of these variables!
{{Character_navbox
|d3 Confirmed Diablo III NPC
|poss Rumoured/possible Diablo III NPC
|d2 Diablo II NPC
|d2_dia Diablo II dialogues
|d1 Diablo I NPC
|d1_dia Diablo I dialogues
|Races Different races
|main Main Character
|imp Important Character
|minor Minor Character
|minor2 Minor Character 2nd tab
}}