Grant also argued a new investigation was needed because people who were at the paper at the time that private investigators who carried out “unlawful activity” were instructed were still in “positions of great power”.
NGN apologised to Prince Harry for serious intrusion into his private life by The Sun that took place between 1996 and 2011.
The paper’s editor during part of that time, Rebekah Brooks, is currently the CEO of News UK. She was cleared of conspiracy to hack voicemails in a 2014 trial.
“A lot of the foot soldiers for those newspapers have now come over to our side… to say this is awful,” the actor said.
“We’ve been punished, we’ve been to prison, we’ve paid fines, we’ve lost our jobs.
“But the people who commanded all this, they’re still there.”
Meanwhile, Grant said the government should launch part two of the Leveson Inquiry into press standards in light of the Duke of Sussex’s case.
The 2012 inquiry into the culture, practice and ethics of the press was launched in the wake of the phone hacking scandal.
“This is something that was repeatedly promised by Labour in opposition to victims of press abuse, over and over.
“And now suddenly seem to have disappeared from their priority list now that they’re in government.”
On Thursday, Lisa Nandy, Secretary of State for Culture, Media and Sport, ruled out opening a second stage of the inquiry, saying it was no longer “fit for purpose”.
“A lengthy inquiry that was formulated in a different era before a lot of the cases that we’ve seen since arise from what happens online, which is where a lot of people consume news nowadays,” Lisa Nandy told the .
The has contacted The Sun, News UK and the government for a response.