Sometoon 2021 (2021)

Main Role

• 
  Yoo Su Yeon

  A Ra (Ep. 1) | Ye Rim (Ep. 6) | Min Ga Ra (Ep. 14) | Eun Joo (Ep. 16-17) | [Student] (Ep. 18-19)

  Main Role
• 
  Kim Byeong Kwan

  Je Ha (Ep. 2) | Moon Do Ha (Ep.11)

  Main Role
• 
  Jeon Seon Ah

  Eun Jin Ha (Ep. 2) | Yu Ri (Ep. 5) | Se Ri (Ep. 18-19)

  Main Role
• 
  Wooju

  Woo Jun (Ep. 3) | [Student] (Ep. 12) | Kang Jun (Ep. 14)

  Main Role
• 
  Hwang Sung Bin

  Wan Jae (Ep. 3) | Eun Ki (Ep. 16) | Dae Han (Ep. 18-19) | Nam Hee Seung (Ep. 20)

  Main Role
• 
  Lim Jeong Min

  Ga Eun (Ep. 3) | Jin Ha (Ep. 4) | Bear Doll [Voice Over] (Ep. 11) | Im Hyun Ah (Ep.20)

  Main Role
• 
  NC.A

  Ye Ra (Ep. 3) | Sophie (Ep. 10) | Hak No Hyeo (Ep. 13) | Dan Bi (Ep. 16) | So Mi (Ep. 17) | Tak Mi Ryeo (Ep. 20)

  Main Role
• 
  Kang Yu Chan

  Jeong Woo (Ep. 4) | Hun (Ep. 18-19)

  Main Role
• 
  Kwon Ji Eun

  Ha Na (Ep. 6)

  Main Role
• 
  Baek Seo Hoo

  Tae I (Ep. 6) | Lim Soo Gi (Ep. 7-8)

  Main Role
• 
  Kang Min Gyu

  Jay (Ep. 1) | Ji Woo (Ep. 9) | Choi Woo Ju (Ep. 12) | Ji Seok (Ep. 15) | Yoo Seong (Ep. 16)

  Main Role
• 
  Ahn Seo Yeon

  Kim Ju Ri (Ep. 7-8)

  Main Role
• 
  Kang Da Kyung

  So Na (Ep. 9) | Lee Tae Ri (Ep. 11) | Na Su Ji (Ep. 12) | [Student] (Ep. 14) | Jang Mi (Ep. 15)

  Main Role
• 
  Park Jun Hee

  Kang Tae Su (Ep. 10) | Seo Ba Da (Ep. 13)

  Main Role
• 
  Yuuri

  Yu Ri (Ep. 13)

  Main Role
• 
  Lee Sun Woo

  [Eun Joo's boyfriend] (Ep. 15) | Ji Woo (Ep. 17)

  Main Role

Support Role

• 
  Eseo

  Yoo Mi So (Ep. 13) | Jeon So Hee (Ep.20)

  Support Role
• 
  Lina

  [Student] (Ep. 7-8) | [Foreign part-timer] (Ep. 12) | Shin I Seo (Ep. 14) | [Classmate] (Ep. 18-19)

  Support Role
• 
  Choi Eun Ji

  Eun Joo (Ep. 15) | Eun Joo (Ep. 18-19)

  Support Role
• 
  Yim So Yun

  [Customer] (Ep. 11) | Si Ah (Ep. 12)

  Support Role
• 
  Min Chae Rim

  [Customer] (Ep. 11) | Ji A (Ep. 12)

  Support Role

Guest Role

• 
  Jang Jae Ik

  [Professor] (Ep. 1)

  Guest Role