Christopher Chaney, 35, of Jacksonville, Florida, was charged on Tuesday with one count each of unauthorised access to a computer and aggravated identity theft. He now faces a total of 28 counts and more than 100 years in prison if convicted.
Chaney previously pleaded not guilty to 26 counts, including wiretapping. An email left on Friday for Chaney's spokesman Ryan Julison was not immediately returned.
An unnamed actress who is referred to only by her initials C.B complained that her email was compromised in October after federal agents served a search warrant at Chaney's home and seized his computer, according to an affidavit. Already 50 alleged victims , now this woman also included in the list.
Federal agents believe Chaney hacked into her account 13 times last month.
Chaney was arrested as part of a year-long celebrity hacking investigation that authorities dubbed "Operation Hackerazzi". Chaney offered some material to celebrity blog sites, but there was no evidence that he profited from his scheme, authorities said.
Chaney is accused of using doxing method to figure out the password and of Celebrity Accounts. He took copy of celebrity email by forwarding to one of his account.
After searching in Chaney's PC, they found is numerous private celebrity photos as well as a document that compiled their extensive personal data in his Hard disk.
Chaney was ordered to wear an electronic monitoring device and not use computers while he awaits trial set for December 27.
