Seer
Seers were player volunteers in Ultima Online in the earlier years. They were connected to Interest Game Masters (IGM). Seers offered quests to people on shards being supported by the IGMs. They encountered and supported various Player Towns and areas considered hot spots of a shard's community.
Seers and the player volunteer program no longer exists.
NPCs called Seers spawned as part of The Last in Line, the presumably final chapter of the Warriors of Destiny event cycle. These NPCs were not related to the volunteers known by the same designation.