Typically olive-skinned and with dark hair and eyes, the people of the Principality of Thellerg are found in many places where the reach of the Kingdom extends its reach. Thell characters may speak and read Common and Thell.
Native to the frozen north and with a long history as raiders and warriors the people of the Principality of Arad tend to be tall, muscular, fair-skinned and blonde. Arad characters know how to speak and read Common and Arad.
The people of the Plains tend to be considered dour and humorless, they have a variety of skin tones and hair colors Plainsmen know how to speak and read Common and Plain Speech.
While any decision is subject to DM/GM approval the default assumption for games set on Ilyenor is that Drow or Dark Elven characters are not suitable for use as player characters.
Other additional races may be allowed by your DM/GM, and you should consult with them if you have a particular race in mind that is not discussed here.