Although she frequently clashes with his Danny Phantom, Valerie briefly strikes a romance with Danny Fenton, unaware that the two were the same person until the series finale. Since then, given ghost hunting equipment from Vlad Masters (unaware he was evil and using her to help him destroy Danny), Valerie becomes determined to destroy all ghosts (formerly Danny Phantom) for ruining her life until she learns Vlad manipulated her and was also half-ghost. Once a rich and popular, however, shallow high school girl, Valerie's life turns upside-down when accidents caused by the ghost dog Cujo cost her father his job and everything they own. Grey DeLisle ('Parental Bonding' and ' My Brother's Keeper')Ĭree Summer (' Shades of Gray'-onward) Valerie Gray is a student at Casper High, a ghost hunter and a frenemy of Danny Phantom.