《Radio Romance》Cast

Yoon Doo-joon (born July 4, 1989), better known mononymously as Doojoon, is a South Korean singer and actor. He is the leader of the South Korean boy group Highlight.

Kim So-hyun (Hangul: 김소현; Hanja: 金所炫; born June 4, 1999), is a South Korean actress. She began her career as a child actress in 2006 and initially gained public attention for playing a villainous young queen-to-be in Moon Embracing the Sun (2012) and a girl who falls into tragedy in Missing You (2013). She took on her first leading role in teen drama Who Are You: School 2015 (2015) and since then, has starred in horror comedy Hey Ghost, Let's Fight (2016) and historical melodrama The Emperor: Owner of the Mask (2017).

Yoon Bak (born November 18, 1987) is a South Korean actor. Yoon began his entertainment career as a drummer for the band Can't Play Well (Hangul: 못 노는 애들), which won the Bronze Prize at the 34th MBC Campus Song Festival in 2010. When his contract with agency S.M. Entertainment expired, he joined JYP Entertainment in 2013. Yoon had starring roles in the television dramas What Happens to My Family? (2014) and Queen's Flower (2015).

Kim Ah-young, better known by her stage name Yura, is a South Korean singer and actress. She is best known as a member of the South Korean girl group Girl's Day.