A Gentleman's Dignity

Chief Producer

• 
  Kang Shin Hyo

Composer

• 
  Park Se Jun

Director

• 
  Kwon Hyuk Chan
• 
  Shin Woo Cheol
• 
  Kim Jung Hyun

Screenwriter

• 
  Kim Eun Sook

Main Role

• 
  Jang Dong Gun

  Kim Do Jin

  Main Role
• 
  Kim Ha Neul

  Seo Yi Soo

  Main Role
• 
  Kim Soo Ro

  Im Tae San

  Main Role
• 
  Kim Min Jong

  Choi Yo On

  Main Role
• 
  Lee Jong Hyuk

  Lee Jung Rok

  Main Role
• 
  Yoon Se Ah

  Hong Se Ra

  Main Role
• 
  Kim Jung Nan

  Park Min Sook

  Main Role
• 
  Yoon Jin Yi

  Im Me Ah Ri

  Main Role

Support Role

• 
  Lee Jong Hyun

  Collin

  Support Role
• 
  Kim Woo Bin

  Kim Dong Hyeop [Highschool student]

  Support Role
• 
  Yoon Joo Man

  Team Leader Choi [Hwa Dam's Employee]

  Support Role
• 
  Park Ah In

  Lawyer Kang [Yo On's colleague]

  Support Role
• 
  Nam Hyun Joo

  Park Hyun Joo [Teacher / Yi Soo's colleague]

  Support Role
• 
  Park Joo Mi

  Kim Eun Hee [Collin's Mother]

  Support Role
• 
  Kim Gun

  Kim Gun [Hwa Dam's Employee]

  Support Role
• 
  Han Eun Sun

  Young Ran [Hwa Dam's employee]

  Support Role
• 
  Jang Eui Soo

  [Student]

  Support Role
• 
  Lee Ji Hoon

  Kim Beop Rae [Se Ra's friend]

  Support Role

Guest Role

• 
  Ahn Jae Min

  Yoo Sung Jae

  Guest Role
• 
  Kim Sun Hwa

  Chairwoman Song [Private Kim's mother] (Ep.15)

  Guest Role
• 
  Kim Yun Seo

  Kim Eun Ji (Ep.2, 4, 6)

  Guest Role
• 
  Cha Hwa Yun

  [Yi Soo's Mother] (Ep. 16 & 19)

  Guest Role
• 
  Ahn Hye Kyung

  [Choi Yoon's client] (Ep.2 & 10)

  Guest Role
• 
  Hwang Eun Soo

  [Se Ra's junior golfer] (Ep.9 & 12)

  Guest Role
• 
  Sa Hee

  [Do Jin's seducer in the bar] (Ep.1)

  Guest Role
• 
  Jo Jae Yun

  [Police officer] (Ep. 1)

  Guest Role
• 
  Kim Kwang Gyu

  [The guys' high school teacher](Ep.4)

  Guest Role
• 
  Kim Dong Gyun

  Na Jong Suk (Ep. 11)

  Guest Role
• 
  Choi Soo Young

  [Herself] (Ep.5)

  Guest Role
• 
  Jung Yong Hwa

  [Yi Soo's former student] (Ep. 13)

  Guest Role
• 
  Juniel

  [Street performer at Hongdae playground] (Ep. 13)

  Guest Role
• 
  Kim Sung Oh

  Private Kim [Chairwoman Song's son] (Ep.15)

  Guest Role
• 
  Jang Joon Yoo

  [Tae San's blind date girl] (Ep.16)

  Guest Role
• 
  Han Seo Yeon

  [Shoes storekeeper] (Ep. 5)

  Guest Role
• 
  Ha Soo Ho

  [Night club guard] (Ep.19)

  Guest Role
• 
  Shin Hye Jung

  [Jong Suk's daughter] (Ep.3)

  Guest Role
• 
  Lee Joon Hee

  Kwon [Hwa Dam's employee]

  Guest Role
• 
  Han Dong Hwan Guest Role
• 
  Lee Suk Koo

  [Father of Im Tae San & Im Mae Ri] (Ep.20)

  Guest Role
• 
  Son Hee Soon

  [Mother of Im Tae San & Im Mae Ri] (Ep.20)

  Guest Role
• 
  Kim Deuk Gyum

  [School bully]

  Guest Role
• 
  Jung Yeun

  [Detective]

  Guest Role
• 
  Yoo Jang Young Guest Role
• 
  Park Seong Kyun

  [Reporter]

  Guest Role
• 
  Choi Young

  [Detective]

  Guest Role
• 
  Lee Jung Sung

  [Son raised alone by Yi Soo's mother]

  Guest Role
• 
  Yoo Il Han

  [Night club waiter] (Ep. 19-20)

  Guest Role
• 
  Yook Mi Ra

  [Pub Owner]

  Guest Role
• 
  Hong Seung Beom

  [Park Min Sook's Assistant]

  Guest Role
• 
  Son Jong Hak

  [Caddy] (Ep.4, 13)

  Guest Role
• 
  Jo Duk Je

  Park Kyeong Deok [CEO]

  Guest Role
• 
  Han Young Kwang

  [Advertiser]

  Guest Role
• 
  Min Joon Hyun

  [Man exercising at the gym]

  Guest Role
• 
  Hwang Seok Jeong

  [Store Boss]

  Guest Role
• 
  Mi So Yun

  [Clothing store employee]

  Guest Role
• 
  Ki Eun Se

  [Cafe woman]

  Guest Role
• 
  Lee Yong Yi

  Lee Mi Gyeong [Yo On's mother-in-law]

  Guest Role
• 
  An So Jin Guest Role
• 
  Jung Yoo Chan

  [Seo Yi Soo's blind date]

  Guest Role
• 
  Lee Mi Do

  [Blind date girl]

  Guest Role
• 
  Ahn Soo Ho

  [Constructor Worker]

  Guest Role
• 
  Kim Jae Yeong

  [Dance Club date] (Ep. 5)

  Guest Role
• 
  Shin Young Jin

  [Woman who brought her child to the funeral of the managing director of a pharmaceutical company]

  Guest Role
• 
  Cha Ji Hoon Guest Role
• 
  Oh Ah Rang Guest Role
• 
  Kim Gwang In

  [Doctor] (Ep.7)

  Guest Role

Bit part

• 
  Jang Ga Hyun

  [Min Sook's friend]

  Bit part

Unknown

• 
  Park Pal Young Unknown
• 
  Jo Sung Hee Unknown
• 
  Min Dong Ho Unknown