If you took a vampire bat, grew it to the size of a child, and had it walk about on its hind legs, you would have a creature nearly identical to Physis. Outside of her size and ability to walk erect on her hind legs, she looks exactly like a true vampire bat. With a fondness for outrageous Star City fashion, however, she has had her entire pelt dyed a cool lavender, and the pale membranes of her wings tattooed with purple runic markings. Her eyes are pale blue, and sensitive to light, so like a true bat she is nocturnal and only leaves her home when the night shift hits the station. She has a fondness for the glow of lumi-wire, however, so her small ears are liberally decorated with lumi-wire piercings in all colors, and she wears lumi-wire anklets of a similar rainbow.

If you're looking for conformity, Physis is the wrong person to look for it in. The bat anthro has a rough and rowdy nature, though it's of the amiable kind that makes her fun to be around as long as you aren't embarrassed easily. Rebellious to the core, she does not react well to being told what to do, and will even go out of her way to spite people that try to be the boss of her.

Her bond with Moifdohth is an unusual one, and the two frequently go about independent of one another. They are friends, though, and get along fine as long as there aren't extra people around to trigger Moifdohth's domineering manner.