Shin Hyun-soo

as Kwon Hyun-woo

as Kim Su Gyeom [Eui Gyeom's brother]

as Kim Jin Seok [XU’s CEO]

as Lee Chun-ho

as Lee Dae-Yeob

as Kook Ki-Bong

as Seo Ji-Ho

as Chong Woon

as Koo Se-Joo

as Yoon Jong-yeol

as Lee Han-sol

as Bae Chul-Joo