Yutrin is (minor SoD spoiler)Spoilerthe name I have given to the goblin cleric who first found the Snarl and fell into it when trying to see what it was by sending a live chicken through it. This brought the Snarl to the Dark One's attention.
Mijung is Soon Kim's dead/unmade wife.
The dwarf is Kraagor.
The non-human woman is a mystery.