Halsin is a wood elf druid and the archdruid of the Emerald Grove on the Sword Coast. He led his people in service to the Oak Father, Silvanus.

He has an imposing figure, and is described as a "bear of an elf". He suspected his "bearish" figure was due to a half-orc ancestral link or some other species. He received the scar on his face during an incident while he was shapeshifted as a bear—a she-bear in mating season had mistaken him and was offended by his discouragement.