Guardian: The Lonely and Great God starred what BtoB boy group member?
Yook Sung-jae Yook Sung-jae (; born (1995--) 2, 1995 ) is a South Korean singer, actor and host. He is a member of the boy group BtoB and its sub-group, BtoB Blue. Aside from his group's activities, Yook is known for acting in television dramas, "" (2015), "" (2015) and "" (2016).
Kim Da-som Kim Da-som (born May 6, 1993), better known mononymously as Dasom, is a South Korean singer and actress. She is best known as a former member of South Korean girl group Sistar under Starship Entertainment. She has acted in films and television dramas, including "Family" (2012–2013), "Melody of Love" (2013–2014) and "The Virtual Bride" (2015).