Yong Joon [Kyung Min's college friend]

Nam Jung-eun

Lee Kyung-min / Kevin Lee

Na Hye-ryun

Yoo Dong-joon

Nam Jung-woo, Jung-eun's younger brother

Nam Sang-sik, Jung-eun's father

Kim Soon-deok, Jung-eun's mother

Lee Pil-deuk, Kyung-min's grandfather

Lee Kyung-hee, Kyung-min's grandmother

Hye-ryun's mother