Im Sung Min is a South Korean actress and former announcer. She obtained a master's degree in Broadcasting and Media from Yonsei University. She made her debut as part of the 14th KBS open recruitment for announcers in 1991 as her family opposed her dreams of acting. After working at KBS for 10 years, she ended her contract and became a freelance announcer. She became the first female to be a quiz show MC when she hosted EBS's "Scholarship Quiz" in 2004. A year later, she began lecturing in broadcasting and acting as a professor at Baekje University of Arts, a position she held until 2016. In 2011, she married American professor Michael Unger who was teaching filmmaking at Sogang University at the time. The couple moved to New York and she acted in the off-Broadway musical "Green Card" in 2016-2017. She entered the American market in 2018 when she signed a contract with a management company and began using her English name, Julia Lim.