Persephone is another slime mold that sprang into existence when Fred reproduced by mitosis, one who considers herself a female. Although she should be genetically identical to Fred, she is a different color (yellow as opposed to Fred's green) and has a very different personality. They can alter their colors at will, and there have been hints of other, different colored slime molds (possibly from another time line). Persephone often seems quite naive, but has shown the occasional hint that she is far more intelligent than she lets on.