Serpentguard

The Serpentguard are a trio of armored humanoids who accompanied Dashiin ai-Yakur and Andraste out of the caverns beneath Cloud Mountain.

They do not speak or acknowledge any humans besides those two, and stand guard upon the Lord ai-Yakur day and night.

One was killed by Conchobar in unknown fashion on the night he confronted Lord ai-Yakur and was driven from Cloud Mountain.

Physiology
Whether they are actually human is unknown, as they seem to need neither rest nor food, and never remove their intricately carved armor, which gives them their name.