Singer and actor Yook Sungjae debuted in 2012 as a member of boy band BTOB. He is also part of its subunit BTOB Blue. He launched his acting career in 2013 with supporting roles in television series like tvN’s “Monstar,” (2013) and “Reply 1994,” (2013). He made his breakthrough by starring in KBS2’s “Who Are You: School 2015,” (2015) and subsequently tvN’s “Guardian: The Lonely and Great God,” (2015-16). He is also well-known for being a cast member on MBC’s reality variety show “We Got Married,” (2008-17), in which he had a mock marriage with Joy of girl group Red Velvet from 2015 to 2016. Yook also starred in MBC’s television show “The Golden Spoon,” recently in 2022.