See how often they participate in the script: HERE.
Character Story: The Patriarch of the Goron Tribe, Darbus is a strong leader and a reliable friend. The Gorons hold a part of the Twilight Mirror, the entrance to the Twilight Realm. When Darbus gets too close to the mirror piece, he becomes possessed, and the Gorons are forced to lock him away. Link agrees to heal him.
Race Story: A typically peaceful tribe of large, rock-eating creatures that live in the Eastern mountains of Hyrule. When Hyrule is attacked by mysterious darkness, tension between the Gorons and the Humans that live at the base of the mountain begin to rise.