Chief of Staff Season 2

Composer

• 
  Choi Chul Ho

Director

• 
  Kwak Jung Hwan

Screenwriter

• 
  Lee Dae II

Main Role

• 
  Lee Jung Jae

  Jang Tae Jun

  Main Role
• 
  Shin Min Ah

  Kang Sun Yeong

  Main Role
• 
  Lee Elijah

  Yoon Hye Won

  Main Role
• 
  Kim Dong Jun

  Han Do Kyung

  Main Role
• 
  Kim Gab Soo

  Song Hee Seop

  Main Role
• 
  Jung Woong In

  Oh Won Shik

  Main Role

Support Role

• 
  Jung Man Sik

  Choi Gyeong Cheol [Leader of the Korea Party]

  Support Role
• 
  Park Hyo Ju

  Lee Ji Eun [Senior Aide]

  Support Role
• 
  Jo Bok Rae

  Yang Jong Yul [Senior aide]

  Support Role
• 
  Kim Hong Pa

  Jo Gap Young [Chairman of Labor Committee]

  Support Role
• 
  Lee Chul Min

  Kim Hyung Do [Senior advisor to Gap Young office]

  Support Role
• 
  Go In Beom

  Sung Young Gi [Honorary chairman of Young-Il Group]

  Support Role
• 
  Yoo Sung Joo

  Lee Chang Jin [CEO of Jujin Chemistry / manager of Samilhe]

  Support Role
• 
  Park Sung Jun

  Jung Min Chul [A sixth-grade secretary to the office of Jang Tae Joon]

  Support Role
• 
  Lee Joo Ahn

  Park Jung Seok [Seventh-grade secretary]

  Support Role
• 
  Do Eun Bi

  Noh Da Jung [Song Hee Seop office 9th grade performance secretary]

  Support Role
• 
  Jeon Jin Ki

  Lee Gwi Dong [Song Hee Seop office 5th grade performance]

  Support Role
• 
  Jeon Seung Bin

  Kim Jong Wook [Song Hee Seop office 5th grade secretary]

  Support Role
• 
  Ji So Yeon

  Kim Mi Jin [Announcer]

  Support Role
• 
  Han Chang Hyun

  Kim Byung Jun [Ching Jin's aide]

  Support Role
• 
  Noh Seung Jin

  [Assemblyman]

  Support Role
• 
  Nam Jin Bok

  Jeong Han Su [Head of Intelligence Unit 1]

  Support Role
• 
  Park Geon

  Seo Hyeong Cheol [Prosecutor]

  Support Role
• 
  Nam Sung Jin

  Ahn Hyeon Min [Assemblyman]

  Support Role
• 
  Ahn Joon Woo

  Ahn Joon Woo [A fifth-grade secretary to the office of Jang Tae Joon]

  Support Role
• 
  Ma Si Hwan

  Prosecutor Yoon [Kyung Chul's junior]

  Support Role
• 
  Lee Shin Ki

  Lee Shin Ki

  Support Role
• 
  Park Gun

  Seo Hyeong Cheol

  Support Role

Guest Role

• 
  Kim Ik Tae

  Lee Sang Guk [Head of judiciary committee inspection] (Ep. 1, 5)

  Guest Role
• 
  Lee Joon Hee

  [Member of Jo Gap Young's party] (Ep. 1)

  Guest Role
• 
  Kim Eung Soo

  Jang Chun Bae [Tae Joon's father] (Ep. 2-4, 9)

  Guest Role
• 
  Jang Jae Ho

  Sung Woo [Reporter of Dodam Daily] (Ep. 2, 6)

  Guest Role
• 
  Lee Soon Won

  [Detective] (Ep. 3, 5, 7, 9)

  Guest Role
• 
  Lee Yong Yi

  Ok Ja [Jujin Factory's victim's grandmother] (Ep. 3-4)

  Guest Role
• 
  Park Ji Yun

  [Married woman who is sick because of Jujin Chemicals] (Ep. 4)

  Guest Role
• 
  Lee Han Wi

  [Chief presidential secretary] (Ep. 5, 10)

  Guest Role
• 
  Ok Joo Ri

  [Suk Hui's client] (Ep. 5)

  Guest Role
• 
  Jung Dong Gyu

  [Prosecutor General] (Ep. 6, 8)

  Guest Role
• 
  Jung Myung Joon

  Prosecutor Shim (Ep. 6-8)

  Guest Role
• 
  Choi Jung Woo

  Kang Seong Yeop [President of Samyeong Bank] (Ep. 7-9)

  Guest Role
• 
  Sung Dong Il

  [Judge] (Ep. 10)

  Guest Role
• 
  Park Myung Shin

  Yeo Sook Hee [Han Do Kyung's mother]

  Guest Role
• 
  Hong Seo Joon

  Jo Ji Hun

  Guest Role
• 
  Lee Min Ji

  [Aide for Kang Sun Young]

  Guest Role
• 
  Sung Ian

  [Reporter]

  Guest Role
• 
  Baek Seung Hwan

  [Congressman]

  Guest Role
• 
  Jang Sung Kyu

  [Prosecutor driver]

  Guest Role
• 
  Kim Jong Ho

  [Guard]

  Guest Role
• 
  Moon Seung Bae

  Kim In Gyu [Head of Finance team, Bugang Electronics]

  Guest Role
• 
  Song Kyung A

  Song Kyung A

  Guest Role
• 
  Kim Dae Kook

  [Chairman Seong's driver]

  Guest Role

Unknown

• 
  Ji Tae Yang Unknown
• 
  Kim In Mok Unknown