Nicole

Nicole is the leader of a group of Red Fledglings that died and un-died, but have chosen to obey Neferet, therefore choosing evil over good. She seemed to have a relationship with Dallas when he turned evil.

In Hidden, when the stables caught fire, she risked her life to rescue the horses and is slowly becoming a good person. Though many of the nerd herd tried to denounce this belief, it became obvious after a while and something they couldn't ignore. Shaylin also noted that her aura was changing.