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).
Kento Nakajima Kento Nakajima (中島健人 , "Nakajima Kento" ) is a Japanese actor and singer. He is best known as being a member of the Japanese idol groups Sexy Zone and Yuma Nakayama w/B.I.Shadow.