Joanna Rey is a zookeeper at the Night Vale Zoo.
Joanna is a shapeshifter and can take many physical forms. During her radio interview she used a human form. She shapeshifts into a panther in order eat her meals. She also mentioned flying to the radio station, so it is probable she can shapeshift into some kind of flying animal or creature .
Joanna was in a relationship with a female dragon called Donna. The relationship was ended by Donna over the phone .