Tuổi Hai Lăm, Tuổi Hai Mốt

Seo Jae Hee

Shin Jae Kyung [Hee Do's mother / News anchor]

Kim Hye Eun

Yang Chan Mi [Fencing team coach]

Joo Bo Young

Lee Ye Ji [Tae Yang High School Fencing club member]

Lee Yea Jin

Park Han Sol [Tae Yang High School Fencing club member]

Choi Myung Bin

Kim Min Chae [Hee Do's daughter]

Kim So Hyun

Na Hee Do [Older]

Choi Min Yeong

Baek Yi Hyun [Yi Jin's younger brother]

Park Yoon Hee

Baek Seong Hak [Yi Jin's father]

Kim Young Sun

[Yi Jin's mother]

So Hee Jung

[Seung Wan's mother]

Heo Ji Na

[Yu Rim's mother]

Kim Dong Gyun

[Yu Rim's father]

Lee Chan Jong

Seo Jung Hyuk [UBS Network reporter]