The Sunstriders are almost all Sunborne Elves with a few exceptions.
Cildra isn't really a member of the Sunstriders, as much as their leader. When they fight, she fights with them.
See: Cildra, Sunstriders
Ithrodan is the Flare Elf Magistrate of the Sunstriders. He is considered their most powerful Sorcerer and Mage.
Seana is the leader of the Sunstriders' Ranger squad. She is an expert markswoman and tracker. She possesses the typical High Elven mindset.
Necromancer
See: Blaize Emberspark, Cildra, Sunstriders