Zephyr is one of three impostors. She is cunning, clever, and ruthless, and often taunts her human prey. She often travels through the vent system. She is occasionally friendly and flirty. She is the "doctor" of the crew. She growls when she's angry or hunting and behaves like an animal. When she's not hunting, she is blunt and serious, but affectionate around her friends. She keeps a scrap book of everyone she meets, which contains many photos. She is sentimental and protective of her friends.