South Korean President Moon Jae-in has pushed the Games as a "peace Olympics" that will open a door for dialogue to alleviate tensions on the peninsula and seek to persuade Pyongyang to give up its atomic ambitions.
According to Yonhap News Agency, they paraded to an EDM remix of "Arirang", a traditional Korean folk song, instead of the Koreas' respective national anthems.
The real Kim Jong Un did not travel to South Korea for the games, either. Jo Yong Sam, department director general of North Korea's foreign ministry, said Thursday the country had never "begged the USA for dialogue" and wasn't about to start now.
She was on hand for the opening ceremony which saw the Korean teams enter under a unified flag.
Pence said the United States and South Korea were closely aligned in their approach to dealing with North Korea.
The statue of two brothers in the war memorial in Seoul - a young boy from North Korea and a military officer from South Korea - who have hugged each other when they face each other during the 1950-53 Korean War speaks volumes about the injured feelings of hundreds of thousands of families.
Two men impersonating the North Korean leader and Mr Trump were kicked out of the ceremony, with the former shouting "well is my sister getting the same treatment?" as security escorted them away.
2 police officer shot dead in line of duty in Columbus suburb
One officer died on the scene, and the other at the Ohio State University Wexner Medical Center, police said. A male suspect was wounded and hospitalized, police spokeswoman Christa Dickey said.
Meanwhile, the United States was represented at PyeongChang by Vice President Mike Pence.
South Korean President Moon Jae-in's office says his lunch meeting with senior North Korean officials including leader Kim Jong Un's sister has ended.
The Korean women's hockey team, its every move watched and dissected since North Koreans were added to the roster just a few weeks ago, will make its Olympics debut in a sold-out game against Switzerland tonight.
However, Pence could not avoid being seated close to both Kim Yong-nam and Kim Yo-jong in the VIP box at the Opening Ceremony.
If it takes place, the meeting would be the first between two Korean leaders since October 2007.
The opening ceremony was attended by several heads of state and included North Korea's ceremonial leader, Kim Yong Nam, and the sister of North Korean leader Kim Jong Un.
Although some White House aides were leery that the arrangement could produce less-than-ideal optics for Pence, there was no concerted effort to lobby their Korean counterparts for a change, in part out of fear of upsetting the Olympic hosts, said one administration official.
In an effort to limit the fiery rhetoric of both leaders, the US and South Korea agreed to suspend military exercises in the region for the duration of the Olympics.