Spook is a woman living in Chicago, Illinois during the Chimeran invasion of the United States. She was a member of Freedom First, and was stranded in Chicago after a massive spire attack. Sometime before the Chimera led a raid in Chicago, Spook remarkably tamed a Chimeran Howler later named Ralf. Spook's appearance stands out the most in Freedom First as she is described as a bald woman whose body is covered in intricate tattoos.