Quote Originally Posted by TheMightyMollusk View Post
The only confirmed hybrids we've seen in-game are Hilda and Arenvald. Hilda has a unique head model, but Arenvald just looks like a regular Highlander, with no obvious Garlean traits.
There is another Hyur-Garlean hybrid in the Sorrow of Werlyt questline in the form of Severa. We know these hybrids eventually grow a black third eye. We can assume Arenvald's third eye was gouged out by his mother early on in it's development.