How Kim Jong Un, North Korea's Threats Evoke Cartoon Villains

— -- Kim Jong Un has made his hatred of the United States very clear in the past few years, with the addition of his government's latest threat of "most disastrous final doom" for the United States topping off the list.

Today’s message, which was released by the North Korean National Defense Commission, said the dictatorial government had no intentions of ever negotiating with the United States in light of alleged cyberattacks by the Americans.

It went on to warn that "the time of nightmare is near."

The official government announcement sounds more akin to something said by a cartoon villain than an actual world leader, but it is in keeping with previous outlandish threats by the North Koreans.

Here are some highlights from both Kim Jong Un, 32, and his late father, Kim Jong Il.

June 2009: A "Grave Crime"

When U.S. reporters Euna Lee and Laura Ling were tried in the country's highest central court, they were found guilty of committing a "grave crime" against North Korea by making an illegal border crossing.

They were arrested in March and, following their trial in June, sentenced to 12 years hard labor at one of the country's notorious prison camps.

They were released in August after a major diplomatic mission that involved former President Bill Clinton's traveling to Pyongyang.

March 2013: Need to "Settle Accounts"

Heightened tensions in the spring of 2013 led to a number of public threats and political posturing.

After an American show of support for South Korea when U.S. military officials ordered a fly over by bomber jets, Kim Jong Un promised to destroy any fighter planes that they spotted in their airspace.

A propaganda video was released by the government that showed troops readying missiles and soldiers marching in line at large anti-U.S. rallies.

Using a line that sounds like something a moustache-twirling villain would say in a secret lair, the North Koreas said that they were readying rockets to "settle accounts with the United States."

April 2013: Demanding Apologies for Slights Against North Korean "Dignity"

The North Koreans take their “Day of the Sun” celebrations seriously, as it is a national holiday to commemorate past leaders, and they did not take it well when some South Korean protesters used the day to burn effigies in the streets (of their own country).

North Korea threatened that "retaliatory acts will begin without notice" unless it received an official apology from South Korea for "hostile acts" and slandering their "dignity."

"If the puppet authorities truly want dialogue and negotiations, they should apologize for all anti-DPRK hostile acts, big and small, and show the compatriots their will to stop all these acts," the government stated.

December 2013: Uncle Was "Worse Than a dog"

The dictatorial political hierarchy is dependent on Kim Jong Un's sole supremacy and, in a possible act to end any possible threat, he ordered the execution of his uncle.

The state news agency KCNA called Jang Song-thaek, who had also been Kim's top deputy, "despicable human scum" and "worse than a dog" in a release announcing his execution.

The news agency said the country was outraged by the allegations that Jang betrayed the trust of Kim Jong Un and his father, Kim Jong Il, referred to as a "peerlessly great men."

Jang Song-thaek was noticeably scrubbed from all earlier photos after his execution and labeled a traitor in news statements.

December 2014: Only One Kim Jong Un

In a move that speaks more to what will go unsaid, the North Korean government decreed that no one else is allowed to have a name that is similar to their dear leaders.

Jong Un, a common unisex name in North Korea, is no longer an option for any expectant parents and anyone who already has that name must get a new name.

The decree was reportedly issued in a document dated Jan. 5, 2011, which was about a month after Kim Jong Un took power after his father's death, but it was not released publicly until late last year.

ABC News' Joohee Cho contributed to this report.