On Your Wedding Day

Through the course of their lives, a man and his first love are repeatedly separated from each other because of circumstances out of their control.

• 
  Lee Seok-geun

• 
  Park Bo-young
  Hwan Seung-hee
• 
  Kim Young-kwang
  Hwang Woo-yeon
• 
  Kang Ki-young
  Ok Geun-nam
• 
  Ko Kyu-pil
  Gu Kong-ja
• 
  Jang Seong-beom
  Choi Soo-pyo
• 
  Cha Yeob
  Lee Taek-gi
• 
  Seo Eun-soo
  Park Min-kyung
• 
  Bae Hae-seon
  Seung-hee's Mother
• 
  An Kil-kang
  Woo-yeon's Father
• 
  Shin So-yul
  So-jung
• 
  Song Jae-rim
  Yoon-geun
• 
  So Hee-jung
  Woo-yeon's Mother
• 
  Lim Hyung-jun
  Mr. Bae
• 
  Kim Hyun-sook
  Ms. Min
• 
  Min Chae-yeon
  Boarding Student
• 
  Yoo Hee-je
  Taek-gi's Subordinate
• 
  Ha Jun
  Seung-hee's Partner
• 
  Lee Joo-Chan
  Student
• 
  Yoon Kyung-ho
  Detective
• 
  Baek Seung-chul
  Police Station Detective Squad Chief