Couple on the Backtrack

Composer

• 
  Mun Seong Nam

Director

• 
  Ha Byung Hoon

Screenwriter

• 
  Kwon Hye Joo
• 
  Im Yeon Soo

Main Role

• 
  Jang Na Ra

  Ma Jin Ju

  Main Role
• 
  Son Ho Jun

  Choi Ban Do

  Main Role

Support Role

• 
  Heo Jung Min

  Ahn Jae Woo

  Support Role
• 
  Han Bo Reum

  Yoon Bo Reum

  Support Role
• 
  Jang Ki Yong

  Jung Nam Gil [Jin Joo's senior]

  Support Role
• 
  Go Bo Gyeol

  Min Seo Young [Ban Do's first love]

  Support Role
• 
  Lee Yi Kyung

  Go Dok Jae [Ban Do's friend]

  Support Role
• 
  Cho Hye Jung

  Chun Sul [Jin Joo's friend]

  Support Role
• 
  Kim Mi Kyung

  Ko Eun Suk [Jin Ju's mother]

  Support Role
• 
  Lee Byung Joon

  Ma Pan Seok [Jin Joo's father]

  Support Role
• 
  Cha Min Ji

  Ma Eun Ji [Jin Joo's older sister]

  Support Role
• 
  Kim Byung Ok

  Choi Ki Il [Ban Do's father]

  Support Role
• 
  Im Ji Gyu

  Dr. Park Hyun Seok [Ban Do's boss]

  Support Role
• 
  Lee Do Yeon

  Kim Ye Rim [Hyun Seok's wife]

  Support Role
• 
  Go Eun Min

  Choi Ja Yeon

  Support Role
• 
  Jo Seung Yeon

  [Jung Nam-Gil's stepmother]

  Support Role
• 
  Kim Mi Ran

  [Jung Nam Gil's mother]

  Support Role
• 
  Oh Jin Ha

  [Nurse]

  Support Role
• 
  Jo Ryeon

  Kang Kyung Sook [Ban Do's Mother]

  Support Role

Guest Role

• 
  U-Know

  [Salesman] (Ep. 2)

  Guest Role
• 
  Yeom Dong Hun

  [Jin Joo's teacher] (Ep. 3) | [Matchmaking program contestant] (Ep. 4)

  Guest Role
• 
  Kim Ki Doo

  [Soldier] (Ep. 6)

  Guest Role
• 
  Lee Sang Min

  Himself (Ep. 7)

  Guest Role
• 
  Lee Hwi Jae

  Himself (Ep. 7)

  Guest Role
• 
  Jung Hyun Seok

  [Seo Young's father] (Ep. 8)

  Guest Role
• 
  Ri Min

  [Lawyer who's on a date with Bo Reum] (Ep. 12)

  Guest Role
• 
  Jo Hyun Sik

  [Ban Do's senior]

  Guest Role
• 
  Son Dong Hwa

  [Alumnus from History faculty] (Ep. 4)

  Guest Role
• 
  Park Yong Guest Role
• 
  Yang Dae Hyuk

  [Department of History senior]

  Guest Role
• 
  Kim Dae Kook

  [Curled up drunk man]

  Guest Role
• 
  Choi Yoon Joon Guest Role
• 
  Kwon Hae Sung Guest Role
• 
  Choi Kwang Je Guest Role
• 
  Yang Ji Won

  Go Eun Bi

  Guest Role
• 
  In Sung Ho

  [Ban Do's business doctor]

  Guest Role
• 
  Kim Joo Ah

  [Karaoke club owner]

  Guest Role
• 
  Kim Hyun Mok Guest Role
• 
  Kim Ji Hwan

  Hae Gang [Jung Nam Gil's son]

  Guest Role
• 
  Shin Hee Gook

  Staff Sergeant Nam (ep.6-10)

  Guest Role
• 
  Seo Woo Jin Guest Role
• 
  Geum Kwang San

  [Yoon Bo Reum's brother]

  Guest Role
• 
  Joo Byung Ha

  [Retirement proposal student]

  Guest Role
• 
  Yeo Woo Rin

  [Senior]

  Guest Role
• 
  Lee Woo Je

  [Bo Reum's older brother]

  Guest Role
• 
  Jeon Yeong In Guest Role
• 
  Jo Ah Jin

  [May queen]

  Guest Role
• 
  Choi Hwa Young

  [Bus driver](Ep. 1)

  Guest Role
• 
  Kim Mi Ji

  [Student cursing]

  Guest Role
• 
  Ahn Ryeo Jin

  [Employee] (Ep. 8)

  Guest Role
• 
  Hwang Bo Jeong Il

  [Yoon Bo Reum's older brother]

  Guest Role
• 
  Kim Yeon Seo

  [Little girl in park]

  Guest Role
• 
  Lee Moo Nyoung

  [Waiter]

  Guest Role
• 
  Kim Geun Yeong

  [Market vendor]

  Guest Role
• 
  Choi Seul Ki

  [History student]

  Guest Role
• 
  Shin Hee Chul Guest Role
• 
  Na Do Yool

  [Medical student] (Ep.6)

  Guest Role
• 
  Kim Ji Hoon

  [Hospital little boy]

  Guest Role
• 
  Won Gun Su

  [Civil Engineer 1994 student leader]

  Guest Role
• 
  Seon Ah Rin

  [Nurse]

  Guest Role
• 
  Seo Jung Joon

  [Male student]

  Guest Role
• 
  Lee Se Wook

  [Cheering squad captain] (Ep. 11-12)

  Guest Role

Unknown

• 
  Bae Kyung Min Unknown
• 
  Eun Seo Yool Unknown
• 
  Song In Seop Unknown