Joli is very pretty. She has long, shiny ebony hair that hangs in ringlets around her face. She has dark melted chocolate eyes that have a ring of gold around the pupil.
She wears diamond earrings known as an E.A.R.P.I.E.C.E., which are a telacomunative device.
Her first appearance was in Operation: H.O.L.I.D.A.Y., she was constantly trying to get to Eva but only had been in her presence for a short time before he met her. What happened during the operation is showed in the one-shot "First Attempt".
Joli is very deadly and can destroy anyone who dares cross her path or gets in the way of her goals.