- Choi Tae-hwan - Lee Sangwoo
- Jeon Soo-jin - Kang Yesol
- Hwang Bo-Mi - Kang Hanna
- Jo Yoon-woo - Moon Joonyoung
- Jeong Dong-hwan - Chairman Kim Namyoon
- Kim Mi-kyeong - Park Heenam
- Choi Jin-ho - Choi Dongwook
- Choi Won-young - Yoon Jaeho
- ??? - Jeon Hyeonjoo
- ??? - Han Giae
- Park Joon-geum - Jeong Jisook
- ??? - Hyoshin's mother
- ??? - Lee Changhyeok
- ??? - Myeongsoo's mother
- Choi Eun-kyeong - Yesol's mother
- Baek Seung-hyeon - Secretary Jeong
- Kim Seung-wook - Jeong Jihoon
- Yoon Son-ha - Esther Lee
- Moon Ah-ram - Lee Yoona
- Jung Ga-ram - Student
- Chanwoo - Kim Tan (Young)
- ??? - Self
- Lee Min-hyuk - Self
- ??? - Self
- Lim Hyun-sik - Self
- Peniel Shin - Self
- Jung Il-hoon - Self
- ??? - Self
- ??? - Cha Eun Suk / Stella [Eun Sang's older sister]
- ??? - Self
- ??? - Self
- Jung Taek-woon - Self
- Ken - Self
- Ravi - Self
- Lee Hong-bin - Self
- Han Sang-hyuk - Self
- Lee Ga Won - Self
- Jeong Da-eun - Self
- Choi Ji-na - Yoo Kyung Ran [Young Do's mother]
- Wang Ji-won - Yang Da Kyung [Kim Won's arranged date]
- Lee Hyun-jin - Bo Na's brother
- Dean Dawson - Prof. John S. Keating
- Lee Ga-ryeong - Clothing store employee
Capítulo disponible en las siguientes plataformas:
