Special S00 E01

Lee Bo-young (as Kim Soo-hyun) Cho Seung-woo (as Ki Dong-chan) Kim Yoo-bin (as Han Saet-byul) Kim Tae-woo (as Han Ji-hoon) Jung Gyu-woon (as Hyun Woo-jin) Cha Sun-woo (as Ki Young-gyu) Han Seon-hwa (as Jenny) No Min-woo (as Theo) Ju Jin-mo (as Lee Myeong-han) Jung Eun-pyo (as Ki Dong-ho) Shin Goo (as Choo Byeong-woo) Lee Si-won (as Lee Soo-jung) Lee Won-jae (as Choo Do-jin)