The attacks came after Pyongyang sent a letter to the United Nations, demanding that Sony not move forward with the movie "The Interview" that portrayed the US-backed assassination of a character made to look like North Korean leader Kim Jong Un.
The criminal complaint, filed in Los Angeles, alleges the hackers committed several attacks from 2014 until 2018. "And it created indiscriminate malware that paralyzed computers and disrupted the delivery of medical care".
Activity from Park's real-name Chosun Expo account and numerous accounts tied to Lazarus Group activity originated from the same Internet addresses in North Korea.
"We can't forget this was the cyber equivalent of a hostile foreign government dropping a bomb on the Sony Pictures lot in the middle of the night", said Josh Campbell CNN analyst and former FBI Supervisory Special Agent who assisted with the Sony investigation.
According to the 176-page indictment, Park worked for Chosun Expo Joint Venture, a company tied to a North Korean military intelligence unit called Lab 110.
The FBI's criminal complaint also said British production company Mammoth Screen had been suffered an electronic intrusion in 2014. The site later vanished from the web.
The Justice Department says Park and other unnamed co-conspirators were involved in a barrage of cyber attacks that also involved an $81 million heist on the Bank of Bangladesh in 2016 and attempts to infiltrate companies such as Lockheed Martin.
The DOJ has charged hackers in China, Iran and Russian Federation aiming to dissuade foreign powers from accommodating those who would attack US corporations.
"These activities run afoul of norms of acceptable safe behavior in cyber space and the global community must address them when we can", Demers said, adding that the charges "reflect the department's determination and ability to follow the facts and the law and to hold individuals and nations accountable for their crimes".
In 2014, for instance, the Obama administration charged five Chinese military hackers with a series of digital break-ins at American companies, and past year, the Justice Department charged Russian hackers with an intrusion at Yahoo Inc.
Park, who USA officials believe is now in North Korea, faces charges that include conspiracy to commit wire fraud.
The Treasury announcement said that Park and his co-conspirators operated from "North Korea, China, and elsewhere to perpetrate these malicious activities".
The US government acknowledged that it is unlikely to get their hands on Park Jin Hyok - his last known location was North Korea and the US does not have an extradition treaty with the dictatorship - but argued it was still important to name him and lodge a formal complaint.
It was not immediately clear what effect they might have on those diplomatic efforts - whether, for example, North Korean strongman Kim Jong Un might walk away.