So. You guys know the constant gods all over the place.
I decided to make it a little easier for both of us and made a chart!

Terebithia - Earth - Adam, Nick - Green/Gold
Nacrea - Darkness - Tyler's uncle - Black/Gold
Chiotana - Air - Tyler's dad - White/Silver
Hospair - Fire - Cody - Red/Gold
Fantasia - Light - Delphi (Tyler's sister) - Yellow/Silver
Sainu - Water - Jackie - Blue/Silver
Kathi - Electricity - Emma - Purple/Gold
Cyroan - Ice - Serenity - Black/Silver

As you can see, there's some unknown gods to the characters, and Tyler's family is apparently really important.