Oh Se-hoon is a South Korean politician who is the current Mayor of Seoul since 8 April 2021. He also previously served as a member of the National Assembly from 2000 to 2004, and as Mayor of Seoul from 2006 to 2011. A member of the People Power Party (PPP), Oh is a lawyer by profession.

Park Won-soon was a South Korean politician, activist, and lawyer. His term ended when he killed himself due to a sexual harassment scandal. He was the longest-serving mayor of Seoul, from 2011 until his death in July 2020. Being a member of the Democratic Party of Korea, he was first elected in 2011 and won re-election in 2014 and 2018.