Live On

Director

• 
  Kim Sang Woo

Screenwriter

• 
  Bang Yoo Jung

Main Role

• 
  Jung Da Bin

  Baek Ho Rang

  Main Role
• 
  Hwang Min Hyun

  Go Eun Taek

  Main Role
• 
  Noh Jong Hyun

  Do Woo Jae

  Main Role
• 
  Yang Hye Ji

  Ji So Hyun

  Main Role
• 
  Yeon Woo

  Kang Jae Yi

  Main Role
• 
  Choi Byung Chan

  Kim Yoo Shin

  Main Role

Support Role

• 
  Hyun Woo Seok

  Kwon Sung Joon [SHBS member / Junior student]

  Support Role
• 
  Woo Da Vi

  Kim Eun Ha [SHBS member / Junior student]

  Support Role
• 
  Yang Jung Yeon

  Kim Hee Won [SHBS member / Junior student]

  Support Role
• 
  Cho Jun Young

  Park Young Jae [SHBS member / Junior student]

  Support Role
• 
  Kim Eun Soo

  Shin Jin Kook Kwon Sung Joon [SHBS member / Senior student]

  Support Role
• 
  Lee Se Hee

  Jung Hee Soo [SHBS member / Senior student]

  Support Role
• 
  Woo Yeon

  Do Woo Sol [Woo Jae's one-year-old younger sister]

  Support Role
• 
  Jang Seo Won

  [History teacher]

  Support Role
• 
  Shin Yoon Seop

  Kim Jung Bin [Student body president]

  Support Role
• 
  Choi Su Jin

  Choi Su Jin [Ho Rang's classmate]

  Support Role
• 
  Kang Hae Lim

  Park Hye Rim [Holding Ho Rang in check]

  Support Role
• 
  Ji Ui Jung

  Ji Ui Jung [Ho Rang's jealous classmate]

  Support Role
• 
  Lee Won Jung

  Lee Jun Ho [Jae I's friend]

  Support Role
• 
  Gwon Hui Jun

  Gwon Hui Jun [Jae Yi's friend]

  Support Role
• 
  Jang Sung Yoon

  Jang Sung Yoon

  Support Role
• 
  Chung Su Bin

  Lee Seon Ju

  Support Role

Guest Role

• 
  Kim Hye Yoon

  Seo Hyeon A [Announcer] (Ep. 1)

  Guest Role
• 
  Ahn Se Ha

  [Literature teacher] (Ep. 1)

  Guest Role
• 
  Go Woo Ri

  [Music teacher] (Ep. 1)

  Guest Role
• 
  Lee Han Wi

  [School headmaster] (Ep. 1-2)

  Guest Role
• 
  Cha Yeob

  [Substitute PE teacher] (Ep. 2)

  Guest Role
• 
  Baek Jae Jin

  [Chinese language teacher] (Ep. 2)

  Guest Role
• 
  Jung Soo Young

  [Jae Yi's mother] (Ep. 2)

  Guest Role
• 
  Lee Da Hae

  [English teacher] (Ep. 2, 7)

  Guest Role
• 
  Jeon Noh Min

  [Eun Taek's father] (Ep. 3)

  Guest Role
• 
  Kim Jeong Hak

  [Ho Rang’s father] (Ep. 3, 5)

  Guest Role
• 
  Yun Yu Sun

  [Ho Rang’s mother] (Ep. 3, 5, 7)

  Guest Role
• 
  Kenta

  [Actor in "Just Me and You" movie during school festival] (Ep. 4-5)

  Guest Role
• 
  Song Sun Mi

  [Eun Taek's mother] (Ep. 4, 7-8)

  Guest Role
• 
  Choi Yeon Jun

  Kim Jin Woo [So Hyun's ex boyfriend] (Ep. 8)

  Guest Role

Unknown

• 
  Kim Yi Seo Unknown
• 
  Baek So Hyun Unknown
• 
  Kim Hoe Chang Unknown