- Faction: Xylona's Flock
- Race: Frost Elf
- Role: Bow Caster
- Released In: Soul Spiller. Thallyn was also offered as an early release at Zolocon 2019.
- Accessories: Short bow, quiver, arrow, Dwarven short sword, axe, fur cape
- Additional Heads: Yes - Thallyn head and fully armored elf head
As one of the only survivors of the Siege of Sjelgard, Thallyn Frostbow is on a mission to alert the world that the legendary vampire weapon known as the Soul Spiller has been retaken. This fabled bow caster is a Frost Elf, a culture so isolated and insular that many in the southern regions have never seen one and have only heard stories about her people. As she travels alongside Ragna Stormforger, Thallyn's mission takes her to parts of Mythoss that are so foreign and so beyond the realm of her limited experience, that she can barely contain her enthusiasm and wonder.