Kang Hyun-woo (20 Episodes)

Yoon Soo-jin (20 Episodes)

Ji Eun-soo (20 Episodes)

Jung Tae-min (20 Episodes)

Chairman Kang (20 Episodes)

Mrs. Park (20 Episodes)

Eun-soo's father (20 Episodes)

Ahn Jang-mi (20 Episodes)

Mrs. Son (20 Episodes)

Jung-gyoo (20 Episodes)

School principal (1 Episodes)