Main Characters Yoon Sae Bom 12 main appearances Jung Yi Hyun 12 main appearances Han Tae Suk 12 main appearances Park Seo-Yoon 11 main appearances Oh Joo-Hyeong 10 main appearances Kook Hae-Sung 10 main appearances Oh Yeon-Ok 10 main appearances Shin So-Yoon 9 main appearances Kim Jung-Kook 8 main appearances Woo Sang-Hee 8 main appearances Na Soo-Min 7 main appearances Na Hyun-Kyung 7 main appearances Ko Se-Kyu 7 main appearances Ji Moon-Hee 7 main appearances Andrew 7 main appearances Kim Dong-Hyun 6 main appearances Kim Hak-Je 5 main appearances Sun Woo-Chang 3 main appearances Park Min-Ji 1 main appearances Kim Se-Hun 1 main appearances Ji Sung-Sil 1 main appearances