Rei Ayanami is an ageless female. Rei has short white hair with bangs centered to the middle. Rei's eye color is red. Rei has an all white body. Her appearance towers the Earth, as she's now Lilith.

Rei is an emotionless, quiet, and stoic girl. Rei usually will remain quiet, unless talked to. Rei is alone, she never had parents, since she's only a clone that was created in a lab at NERV. Rei eyes are usually half-lidded and she seems to have no emotions at all, her voice is calm.