Current arc is basically out of control. You have Kurapika, Leorio and another 10 zodiacs; Beyond, Pariston, Ging and their group; Spiders, Hisoka, 14 princes, their mothers and their most promiment guards, the king, 15 nen beasts and the 6 guys Kurapika hired. Also 3 mafia leaders and some of their henchmen. Granted some of those characters seem to be reserved for the next part of the arc but there's still a lot in the current arc, and Kurapika alone will usually fill an entire chapter worth of dialogue/monologue.