When My Love Blooms

Director

• 
  Son Jung Hyun
• 
  Kim Tae Yub

Screenwriter

• 
  Jeon Hui Yeong

Main Role

• 
  Yoo Ji Tae

  Han Jae Hyun

  Main Role
• 
  Lee Bo Young

  Yoon Ji Soo [Present]

  Main Role
• 
  Park Jin Young

  Han Jae Hyun [20s]

  Main Role
• 
  Jeon So Nee

  Yun Ji Su [20s]

  Main Role

Support Role

• 
  Park Shi Yeon

  Jang Seo Gyung [Han Jae Hyun's wife]

  Support Role
• 
  Moon Sung Keun

  Jang San [Jang Seo Gyung's father]

  Support Role
• 
  Park Min Su

  Han Joon Seo [Han Jae Hyun & Jang Seo Gyung's son]

  Support Role
• 
  Nam Myung Ryul

  Han In Ho [Han Jae Hyun's father]

  Support Role
• 
  Kang Young Seok

  Gang Joon Woo [Han Jae Hyun's secretary]

  Support Role
• 
  Kim Ho Chang

  Jung Yoon Gi [Han Jae Hyun's co-worker]

  Support Role
• 
  Kim Young Hoon

  Lee Se Hoon [Yoon Ji Soo's former husband]

  Support Role
• 
  Jang Gwang

  Yoon Hyung Goo [Yoon Ji Soo's father]

  Support Role
• 
  Ko Woo Rim

  Lee Young Min [Yoon Ji Soo's son]

  Support Role
• 
  Lee Jong Nam

  Jung Sook Hee [Yoon Ji Soo's mother]

  Support Role
• 
  Chae Won Bin

  Yoon Ji Young [Yoon Ji Soo's younger sister]

  Support Role
• 
  Kim Young Ah

  Choi Sun Hee [Yoon Ji Soo's co-worker]

  Support Role
• 
  Min Sung Wook

  Lee Dong Jin [Present]

  Support Role
• 
  Eun Hae Sung

  Lee Dong Jin [20s]

  Support Role
• 
  Kim Joo Ryoung

  Sung Hwa Jin [Present]

  Support Role
• 
  Han Ji Won

  Sung Hwa Jin [20s]

  Support Role
• 
  Woo Jeong Won

  Yang Hye Jung [Present]

  Support Role
• 
  Park Han Sol

  Yang Hye Jung [20s]

  Support Role
• 
  Lee Tae Sung

  Joo Young Woo [Present]

  Support Role
• 
  Lee Byung Hun

  Joo Young Woo [20s]

  Support Role
• 
  Joo Byung Ha

  [Student moderator]

  Support Role
• 
  Kim Sun Hwa

  [Lee Se Hoon's mother]

  Support Role
• 
  Eom Ok Ran

  [Striking temp worker]

  Support Role
• 
  Cha Jin Wook

  Lee Myung Geun

  Support Role

Guest Role

• 
  Ra Jae Woong

  [Executive]

  Guest Role
• 
  Choi Woo Hyuk

  Se Hwi (Ep.5)

  Guest Role
• 
  Yong Jin

  [Detective] (Ep.4)

  Guest Role
• 
  Kim Won Seok

  [Detective] (Ep.4)

  Guest Role
• 
  Jung Kang Hee

  [Detective] (Past) (Ep.4)

  Guest Role
• 
  Park Jung Eon

  [Maid] (Ep.2)

  Guest Role
• 
  Son Sook

  Lee Gyung Ja [Han Jae Hyun's mother]

  Guest Role
• 
  Jung Kyu Soo

  [Principal] (Ep.1-3)

  Guest Role
• 
  Sung Chan Ho

  [Judge] (Ep.1)

  Guest Role
• 
  Bo Ra Na

  [Rich mom] (Ep. 1, 4)

  Guest Role
• 
  Son Deok Ki

  Gyeong Ho (Ep. 1)

  Guest Role
• 
  Kim Mi Hwa

  [Striking temp worker] (Ep.1-2)

  Guest Role
• 
  Hong Suk Youn

  [Father protesting] (Ep.1,8-9)

  Guest Role
• 
  Lee Yong Yi

  [Convenience store owner] (Ep.1,7)

  Guest Role
• 
  Choi Hyuk Joo

  [Director, Piano Academy] (Ep.4-5)

  Guest Role
• 
  Jeon Yeo Jin

  [Hotel manager] (Ep.4-5)

  Guest Role
• 
  Yoo Young Bok

  Jang Yoo Wan (Ep.5)

  Guest Role
• 
  Jang Eui Don

  [Detective] (Ep.6)

  Guest Role
• 
  Kwon Sung Duk

  [Monk] (Ep.6)

  Guest Role
• 
  Do Ki Suk

  Mr. Kim (Ep.6-7)

  Guest Role
• 
  Park Choong Seon

  [Jang San's subordiant] (Ep. 7, 9)

  Guest Role
• 
  Heo Jung Do

  [Prosecutor] (Ep. 7-9)

  Guest Role
• 
  Shin Hee Gook

  [Student] (Ep.5-6,14)

  Guest Role
• 
  Han Hee Jung

  [Yoon Ji Soo's neighbor] (Ep.11)

  Guest Role
• 
  Park Min Young

  [Piano student's mother] (Ep. 13)

  Guest Role
• 
  Min Dae Shik

  [Prosecutor] (Ep.10)

  Guest Role
• 
  Jo Sun Mook

  [Han Jae Hyun's shareholder] (Ep.12-14)

  Guest Role
• 
  Nam Gyu Ri

  [Ice cream woman in park] (Ep. 16)

  Guest Role
• 
  Jin Shi Won

  [LP bar couple] (Ep. 2)

  Guest Role
• 
  Baek Seung Hyun

  [Detective]

  Guest Role
• 
  Nam Moon Chul

  Lawyer Choi Jae Hyuk

  Guest Role
• 
  Byun Gun Woo

  [Doctor] (Ep.11)

  Guest Role
• 
  Jun Eun Mi

  [Due to have home demolished]

  Guest Role
• 
  Kim Bong Hui

  [Sun Hee's mother] (Ep. 14)

  Guest Role
• 
  Sung Myung Shin

  [Rich mom]

  Guest Role
• 
  Kim Su Kyung

  [Receptionist] (Ep.2)

  Guest Role
• 
  Park Byung Wook

  [Priest] (Ep. 8)

  Guest Role
• 
  Jung Ki Sun

  [Demolition crew] (ep.13)

  Guest Role
• 
  Lee Sung Il

  [Company dinner attendee] (ep.7)

  Guest Role
• 
  Lee Ye Seo

  Byeol (ep.10-11)

  Guest Role
• 
  Park Han Ul

  [Student]

  Guest Role
• 
  Yoon Seo Yeon

  Yoo Bin (Ep. 10-11)

  Guest Role
• 
  Kim Baek Ri

  [LP bar couple] (Ep. 2)

  Guest Role
• 
  Park Jong Bo

  [Real estate agent] (Ep. 13)

  Guest Role
• 
  Oh Chae Eun

  [Nurse]

  Guest Role
• 
  Kim Jong Ho

  [Seoul Bank executive] (Ep. 2)

  Guest Role
• 
  Cha Geon Woo

  [Han Jae Hyun's shareholder] (ep.12-14)

  Guest Role
• 
  Yang Ha Yoon

  [Female employee]

  Guest Role
• 
  Park Tae Yun

  [Runaway kid #2]

  Guest Role
• 
  Park Eun Young

  [Striking temp worker]

  Guest Role
• 
  Yoo Sung Yeol Guest Role
• 
  Kim Seo Heon

  Jang Seo Gyeong [Child]

  Guest Role
• 
  Kwak Myung Hwa

  [Rich mom]

  Guest Role
• 
  Eun Ye Jun

  Ko Hyeon U (Ep. 9-10)

  Guest Role

Unknown

• 
  Kim Cha Yoon Unknown
• 
  Sin Seo Ho Unknown
• 
  Noh Young Min Unknown
• 
  Jung Ji Hwan Unknown