Joo Won
Cha Yoojin (16 eps)
Shim Eun-kyung
Seol Naeil (16 eps)
Park Bo-gum
Lee Yoonhoo (16 eps)
Min Do-hee
Choi Minhee (16 eps)
Go Kyung-pyo
Yoo Ilrak (16 eps)
Ahn Kil-kang
Yoo Wonsang (16 eps)
Lee Joo-hyung
Goo Seonjae (16 eps)
Jo Yoon-woo
Lee Jaeyong (16 eps)
Moon Hee-kyung
Naeil's ex-teacher (16 eps)
