Kim Jong-un
Kim Jong-un (officially transcribed Kim Jong Un; ; ; born 8 January 1984) is a North Korean politician serving as Supreme Leader of North Korea since 2011 and Leader of the Workers' Party of Korea since 2012. Kim is the second child of Kim Jong-il (1941–2011) and Ko Yong-hui (1952–2004). The grandson of Kim Il-sung, the first leader of North Korea from 1948 to 1994, he is the first North Korean leader to have been born after the country's founding.
Kim Tu-bong
He and other members of the Yan'an faction formed the New People's Party when they returned from exile. After the New People's Party merged into the Workers Party of North Korea (WPNK) in 1946 at the 1st WPNK Congress, he became WPNK Chairman. He was the first head of state (Chairman of the Presidium of the Supreme People's Assembly) of North Korea from 1948 to 1957. He is most remembered in South Korea for his efforts in establishing the Korean linguistic field and especially that of Hangul. Much of his work both political and linguistically was done while living in China with the exiled government of Korea. He is also known by his pen name Baekyeon. He was purged by Kim Il-sung in 1957.