as Noh Go-jin
16 episodes
as Lee Shin-ah
16 episodes
as Baek Soo-young
16 episodes
as Oh Se-gi
16 episodes
as Lee Su-ho
16 episodes
as Chu Ok-hee
16 episodes
as Park Yang-tae
16 episodes
as Lee Yong-gu
16 episodes
as Kang Min
16 episodes
as Kim Cha-Bae
16 episodes
as Gong Hee-Cheol
16 episodes
as Ma Eun-Jeong
16 episodes
as Gong Pil-Sun
16 episodes
as Kim Hye-Sun
16 episodes
as Joo Joon-Pal / "John"
16 episodes
as Michelle Lee
16 episodes
as Hwang
16 episodes
as Lee Beom-Gyu
16 episodes
as Park Eun-Hee
16 episodes
as Lee So-ra
16 episodes
as Jo Jong-Oh
16 episodes
as GoTop Teaching assistant
16 episodes
as GoTop staff
16 episodes
as [Student's mother]
1 episode
as [Special lecture staff]
1 episode
as [Nurse]
2 episodes
as Han Ji Ho [Doctor]
4 episodes
as [Baekga University professor]
1 episode
as [Baekga University professor]
1 episode
as Yoo Jae Ho [Doctor]
1 episode
as Yoo Jae-Ho [Doctor]
1 episode
as [Detective]
2 episodes
as [Detective]
2 episodes
as [Se Gi's secretary]
2 episodes
as [Nurse]
2 episodes
as Bae Byun Ho [Lawyer]
1 episode
as [Resident]
1 episode
as [Resident]
1 episode
as [Hotel receptionist]
1 episode
as Lee Dae Seok [Reporter]
2 episodes
as [Interviewer]
1 episode
as [Moderator]
1 episode
as [Driver on call]
1 episode
as [Yong Gu's friend]
2 episodes
as [Floral deliveryman]
2 episodes
as Hong Yeo Sa [Yang Tae's wife]
2 episodes
as Chu Moon Sik [Yong Gu's friend / Ok Hee's Father]
3 episodes
as [Go Jin's grandma]
4 episodes
as Noh Go Jin [Child]
4 episodes
as [Yong Gu's friend]
2 episodes
as Baek [Soo Young's father / Chairman]
1 episode
as [Taxi driver]
1 episode
as [Patient's father]
1 episode
as [Judge]
1 episode
as [Police officer]
1 episode
as [Chairman Baek's secretary]
1 episode
as [Go Jin's fan]
1 episode
as Na Soo Yeon [GoTop ex-employee]
4 episodes
as [Shareholder]
3 episodes
as Oh Se A [Se Gi's father]
2 episodes
as Oh Hee Seok [Shin Ah's friend]
1 episode
as [Reporter]
1 episode
as Son Sang Won [Reporter]
1 episode
as Lee Soo Yeon [Interviewee]
1 episode
as [Detective]
1 episode
as [Detective]
1 episode
as [Hye Sun's son]
1 episode
as [CCTV Installer]
1 episode
as Oh Se Hee [Se Gi's sister]
3 episodes
as [Detective]
1 episode
as [Student's upset mother]
1 episode
as [Master Education CEO]
1 episode
as [Master Education teacher]
1 episode
as Kim Do Yoon [Eun Jung's son]
1 episode