Jinyoung Joo Il-woo / Joo Wol-woo Kim Young-min Cho Soon-wu Kim Dong-hwi Son Hwan Song Geon-hee Moon Ja-hoon Heo Dong-won Han Hee-sang Hwang In-sung Go Bang-cheon Seo Jin-won Choi Noo-ri Kim Jeong-jin Baek Young-jun Yun Yoo-sun Ja-hoon's Mother Jung Hae-kyun Lawyer Son Byeong-uk Demolition Captain Jong Ho Yong-cheol