History of the Salaryman

Chief Producer

• 
  Choi Moon Seok

Cinematography

• 
  Lee Gil Bok

Director

• 
  Yoo In Shik

Screenwriter

• 
  Jang Young Chul
• 
  Jung Kyung Soon

Main Role

• 
  Lee Bum Soo

  O Yu Bang

  Main Role
• 
  Jung Gyu Woon

  Choi Hang U

  Main Role
• 
  Jung Ryeo Won

  Baek Yeo Chi

  Main Role
• 
  Hong Soo Hyun

  Cha U Hui

  Main Role

Support Role

• 
  Kim Eung Soo

  O Ji Rak [Chairman of Jang Cho Pharmaceutical]

  Support Role
• 
  Lee Gi Young

  Park Beom Jeung [Chunha executive director]

  Support Role
• 
  Yoo Hyung Kwan

  So Ha [Chunha management director]

  Support Role
• 
  Yoon Yong Hyun

  Yun Bun Gwae [Chunha team manager]

  Support Role
• 
  Yang Hyung Wook

  Han Sin [Hang U's handyman]

  Support Role
• 
  Joo Hee Joong

  Jang Chil Bok [Ga Bi's assistant]

  Support Role
• 
  Kim Il Woo

  Jang Ryang [Chunha executive director]

  Support Role
• 
  Kim Seo Hyung

  Mo Ga Bi [Chunha head secretary]

  Support Role
• 
  Jang Hyun Sung

  Choi Hang Ryang [Chunha finance director]

  Support Role
• 
  Lee Deok Hwa

  Jin Si Hwang [Chairman of Chunha Group / Yeo Chi's grandfather]

  Support Role
• 
  Park Sang Myun

  Jin Ho Hae [Chunha vice president / Yeo Chi's uncle]

  Support Role
• 
  Song Kyung Chul

  Paeng Wol [Mob businessman]

  Support Role
• 
  Sung Chan Ho

  Executive Director Kim

  Support Role
• 
  Lee Seung Won

  Chief Kim

  Support Role
• 
  Jung Se Hyung

  Deputy Kim

  Support Role
• 
  Song Min Hyung

  Park Seong Cheol [Bank president]

  Support Role
• 
  Hong Seung Beom

  [Team leader]

  Support Role
• 
  Lee Hee Do

  [Chunha's head of factory]

  Support Role
• 
  Lee Keun Hee

  Kim Dae Cheol [Research director]

  Support Role

Guest Role

• 
  Lee Joon

  [Idol / Yeo Chi's boyfriend] (Ep. 1)

  Guest Role
• 
  Im Hyun Shik

  [Yu Bang's father] (Ep. 1)

  Guest Role
• 
  Oh Jung Tae

  [Guinea pig] (Ep. 1)

  Guest Role
• 
  Choi Gyo Shik

  [Guinea pig] (Ep. 1)

  Guest Role
• 
  Bae Gi Beom

  [Guinea pig] (Ep. 1)

  Guest Role
• 
  Lee Joo Shil

  [Yu Bang's mother] (Ep. 1-2)

  Guest Role
• 
  Kim Kyung Ryong

  [Head chef] (Ep. 2-3)

  Guest Role
• 
  Kim Ji Young

  Ji Won [Han Sin's daughter] (Ep. 5)

  Guest Role
• 
  Jung Hyun Seok

  [Chunha's management section staff] (Ep. 5)

  Guest Role
• 
  Jeong Bo Seok

  Cho Pil Yun [Congressman] (Ep. 6)

  Guest Role
• 
  Oh Kyung Soo

  Department Head Bang (Ep. 6-8)

  Guest Role
• 
  Lee Joon Hee

  [Reporter] (Ep. 8)

  Guest Role
• 
  Joo Boo Jin

  [Chunha factory worker's mother] (Ep. 10)

  Guest Role
• 
  Kim Ik Tae

  Doctor Choi (Ep. 11, 15-17, 22)

  Guest Role
• 
  Kang Kyung Joon

  Bok Sa Yul [Taeyang Group Director / Hang Woo's friend] (Ep. 12-15, 17)

  Guest Role
• 
  Lee Jong Goo

  Park Seol Pal [Hospital Director] (Ep. 14)

  Guest Role
• 
  Son Jong Hak

  [Lawyer] (Ep. 15-16)

  Guest Role
• 
  Jung Dong Gyu

  [Psychiatrist in the ending's prologue] (Ep. 16)

  Guest Role
• 
  Lee Yoon Sang

  [Chunha executive] (Ep. 16)

  Guest Role
• 
  Yoon Bok Sung

  [Chunha executive] (Ep. 20)

  Guest Role
• 
  Kim Gwang In

  [Chunha executive] (Ep. 20)

  Guest Role
• 
  Kim Sung Oh

  Park Mun Su [Prosecutor] (Ep. 20-22)

  Guest Role
• 
  Kim Seung Pil

  [False religion believer]

  Guest Role
• 
  Jeon Jae Hyung

  [Delivery man]

  Guest Role

Unknown

• 
  Lee Ja Min Unknown
• 
  Park Jong Seol Unknown
• 
  Yang Seung Kul Unknown
• 
  Park Geon Rak Unknown