Prudence Johnna "P.J." Halliwell is the eldest daughter of Phoebe Halliwell She is the older sister of Parker and Peyton. Like her sisters, she is a Cupid-witch, having inherited magical genes from both her parents. So far, her powers include Remote Beaming and Beaming. Additionally, she possesses the basic powers of a witch; the ability to cast spells, brew potions, and scry for lost objects or people.Phoebe conceived P.J. while they were on their honeymoon, resulting in her birth in late 2007. Phoebe decided to continue the tradition of giving Halliwell children names that begin with "P", and named her daughter Prudence after her late sister, Prue. Which was why she was named after her Aunt Prue.

P.J. came into her powers about three months after her birth. Her mother was getting ready to leave for work when the baby beamed her back into the house and her mother got jealous and thought she had a better power, revealing to her parents that she had come into her powers. P.J. came into her powers around the same time as her cousin Melinda, yet faster than her other cousins, Kat and Tamora, even though they were much older than her. About a year after she first came into her powers, P.J.'s remote beaming power grew, enabling her to beam herself. She used this to beam herself