- Lee Jung-jin as Lee So-yeon
- Cha Seung-won as Lee Jeong-ha
- Kim Min-hee as Maria/Lee Yeon
- Jo Jae-hyeon as Lee Young-man
- Lee Jong-hyuk as Choi Sang-jun
- Moon Sori as Kang Su-kyeong
- Oh Kwang-rok as Park Yong-cheol
- Jung Jae-young as Kim Jeong-min
- Shin Goo as Lee Man-sik