The Auditors

Director

• 
  Kwon Young Il

Screenwriter

• 
  Choi Min Ho

Main Role

• 
  Shin Ha Kyun

  Sin Cha Il

  Main Role
• 
  Lee Jung Ha

  Koo Han Su

  Main Role
• 
  Jin Goo

  Hwang Dae Ung

  Main Role
• 
  Jo A Ram

  Yun Seo Jin

  Main Role
• 
  Jung Moon Sung

  Hwang Se Ung

  Main Role

Support Role

• 
  Baek Hyun Jin

  Yang Jae Seung [Managing director]

  Support Role
• 
  Oh Hee Joon

  Moon Sang Ho [Deputy manager]

  Support Role
• 
  Hong In

  Yeom Gyeong Seok [JU Construction audit team deputy manager]

  Support Role
• 
  Lee Ji Hyun

  Ok A Jeong [JU Construction audit team manager]

  Support Role
• 
  Lee Do Yeop

  Hwang Geon Ung [JU Construction’s former president]

  Support Role
• 
  Lee Chae Kyung

  Im Yu Seon [Geon Ung's wife]

  Support Role
• 
  Park Soo Young

  Koo Seok Gu [Han Su’s father]

  Support Role
• 
  Woo Mi Hwa

  An Hye Yeong [Han Su’s mother]

  Support Role
• 
  Kim Bi Bi

  Lee Mi Jin [Seo Jin's mother]

  Support Role
• 
  Kim Ro A

  Yun Seo Jin [Child] (Ep. 9)

  Support Role

Guest Role

• 
  Choi Jae Sub

  Gyeong Ryeol [Seok Gu's former co-worker] (Ep. 1)

  Guest Role
• 
  Jung Hee Tae

  Kang Il Gwon [Ewoon Construction Finance manager] (Ep. 1)

  Guest Role
• 
  Jung In Ki

  Team leader Kwak [Former JU Audit Team head] (Ep. 1)

  Guest Role
• 
  Cha Shin Tae

  [Employee] (Ep. 1)

  Guest Role
• 
  Lee Jae Eun

  [Cafeteria staff] (Ep. 1)

  Guest Role
• 
  Kim Jung Han

  [Injured worker] (Ep. 1)

  Guest Role
• 
  Kim Moon Ho

  [Injured worker] (Ep. 1)

  Guest Role
• 
  Yoon Sang Hwa

  Park Ho Yeon [President of Myung Tower] (Ep. 1-2)

  Guest Role
• 
  Jung Suk Yong

  Bae Yeong Sik [Foreman] (Ep. 1-2)

  Guest Role
• 
  Kim Hong Pa

  Seo Gil Pyo [JU Construction managing director] (Ep. 1-2, 11-12)

  Guest Role
• 
  Lee Kyu Hoe

  [Sin Cha Il's father] (Ep. 1, 12)

  Guest Role
• 
  Kim Geon Ho

  An Byeong Jin [Tower crane operator] (Ep. 2)

  Guest Role
• 
  Jin Yong Wook

  Choi Hyeong Il [Tower crane operator] (Ep. 2)

  Guest Role
• 
  Kim Ik Tae

  [Executive] (Ep. 2)

  Guest Role
• 
  Lee Dong Wook

  [Mechanic] (Ep. 2)

  Guest Role
• 
  Kim Na Yeon

  [Yeong Sik’s daughter] (Ep. 2)

  Guest Role
• 
  Jung Dong Hwan

  Bang Gi Ho [JU Construction shareholder] (Ep. 2-3, 6, 8, 11-12)

  Guest Role
• 
  Yoon In Jo

  General Manager Jo (Ep. 3)

  Guest Role
• 
  Lee Hyun

  [Restaurant worker] (Ep. 3)

  Guest Role
• 
  Jung Woo Young

  [Housing department staff] (Ep. 3)

  Guest Role
• 
  Jung Sang Hoon

  [Hiking club president] (Ep. 3)

  Guest Role
• 
  Hong Soo Hyun

  Yu Mi Gyeong [JU Construction housing division’s head] (Ep. 3-4)

  Guest Role
• 
  Shin Kang Kyun

  Mr. Kim [Victim of JU Construction Housing Embezzlement Case] (Ep. 3-4)

  Guest Role
• 
  Park Wan Kyu

  O Chang Sik [Union represtantive] (Ep. 3-4)

  Guest Role
• 
  Ko Ju Ni

  Kim Min Hui [Mr. Kim's granddaughter] (Ep. 3-4)

  Guest Role
• 
  Lee Shin Ki

  Kang Myeong Cheol [Audit's Team Manager / Mi Kyung's husband] (Ep. 3-4)

  Guest Role
• 
  Gu Bon Jin

  [Detective] (Ep. 3-4)

  Guest Role
• 
  Kang Moon Kyung

  An Dong U [Vice minister of Land] (Ep. 3-4, 11-12)

  Guest Role
• 
  Kim Shin Yul

  [Lawyer] (Ep. 4)

  Guest Role
• 
  Park Ji Ho

  [Chauffeur] (Ep. 4)

  Guest Role
• 
  Lim Jung Min

  [Dump truck driver] (Ep. 4)

  Guest Role
• 
  Seo Wang Seok

  [Dump truck driver] (Ep. 4)

  Guest Role
• 
  Uhm Tae Ok

  [The Myeong worker] (Ep. 4)

  Guest Role
• 
  Kim Han Sang

  [Employee] (Ep. 4-5)

  Guest Role
• 
  Go Seo Hee

  Eun Jeong [Victim of JU Suncontract Corruption] (Ep. 5-6)

  Guest Role
• 
  Lee Yang Hee

  [Hospital director] (Ep. 5)

  Guest Role
• 
  Jo Han Chul

  Pyeon In Ho [Director of JU Subcontracts & Procurement Department] (Ep. 5-6)

  Guest Role
• 
  Kim Soo Jin

  Min Eun Suk [Subcontractor Cafeteira owner] (Ep. 5-6)

  Guest Role
• 
  Woo Ji Hyun

  Im Jeong Yun [Manager of JU Subcontracts & Procurement Dept.] (Ep. 5-6)

  Guest Role
• 
  Ha Sung Min

  Lee Dong Cheol [Restaurant owner] (Ep. 6)

  Guest Role
• 
  Sung Jeong Seon

  [Cleaning lady] (Ep. 6)

  Guest Role
• 
  Ji Sung Geun

  [Business owner] (Ep. 6)

  Guest Role
• 
  Ahn Hyun Jung

  [Jeong Yun’s mom] (Ep. 6)

  Guest Role
• 
  Min Hyo Kyung

  [Restaurant owner] (Ep. 6)

  Guest Role
• 
  Jeon Jeong Il

  [Restaurant owner] (Ep. 6)

  Guest Role
• 
  Choi Sol Hui

  [Architecture dept. staff] (Ep. 6)

  Guest Role
• 
  Kim Shin Bi

  O Yeon U [JU Construction Technology Development department staff] (Ep. 6-7)

  Guest Role
• 
  Shin Jae Ha

  Lee Ji Hun [Head of JU Construction Technology Development Department] (Ep. 6-7)

  Guest Role
• 
  Lee Joong Ok

  Park Jae Hwa [Manager of JU Construction Technology Development Department] (Ep. 6-7)

  Guest Role
• 
  Kim Hwa Joong

  [Developer] (Ep. 6-7)

  Guest Role
• 
  Park Bin

  [Developer] (Ep. 6-7)

  Guest Role
• 
  Yoo Yong

  [Developer] (Ep. 6-7)

  Guest Role
• 
  Lee So Geum

  [Developer] (Ep. 6-7)

  Guest Role
• 
  Jeon Jae Hong

  [Security guard] (Ep. 6-7)

  Guest Role
• 
  Kim Sang Bo

  [Audit team manager] (Ep. 6, 12)

  Guest Role
• 
  Park Jae Chul

  [Passport forger] (Ep. 7)

  Guest Role
• 
  Kim Geun Bae

  [Reporter] (Ep. 7-8)

  Guest Role
• 
  Hyun Bong Sik

  Kim Man Su [Baeon Construction's assistant manager] (Ep. 7, 10)

  Guest Role
• 
  Jo Ah Ra

  Lee Cha Sun [HR Team Head] (Ep. 8)

  Guest Role
• 
  Park Ye Ni

  Jung Hye Yeong [HR Assistant manager] (Ep. 8)

  Guest Role
• 
  Lee Gyoung Ho

  [Employee] (Ep. 8)

  Guest Role
• 
  Min Sung Wook

  Yun Dae Gyeong [Former JU HR Team head] (Ep. 9)

  Guest Role
• 
  Kim Yoon Hong

  [Dae Ung’s dad] (Ep. 9)

  Guest Role
• 
  Lee Il Joon

  [Han Su’s friend] (Ep. 9)

  Guest Role
• 
  Park Sil Rim

  [Elevator employee] (Ep. 9)

  Guest Role
• 
  Kim Ji Hyun

  Seo Hui Jin [Team leader of external auditor ''Bal-eun''] (Ep. 9-10)

  Guest Role
• 
  Hong Seo Joon

  CEO Jung [Loan shark / Hye Yeong's father] (Ep. 10)

  Guest Role
• 
  Lee Dabitna

  Gong Chae Won [HR Department staff] (Ep. 10)

  Guest Role
• 
  Hwang Min Ho

  Min Yeong Cheol [Auditor] (Ep. 10)

  Guest Role
• 
  Jang So Yeon

  [Man Su’s wife] (Ep. 10)

  Guest Role
• 
  Lee Do Hyung

  [Job interviewer] (Ep. 10)

  Guest Role
• 
  Kim Do Hyeong

  [Job interviewer] (Ep. 10)

  Guest Role
• 
  Kwak Min Seok

  [Karaoke room man] (Ep. 10)

  Guest Role
• 
  Lee Jae Woo

  [JU Construction director] (Ep. 10-11)

  Guest Role
• 
  Jeon Se Yong

  Director Kim [JU Construction director] (Ep. 10-11)

  Guest Role
• 
  Lee Dong Gyu

  [Anchorman] (Ep. 11)

  Guest Role
• 
  Shin Dong Ryuk

  [Reporter] (Ep. 11)

  Guest Role
• 
  Min Sang Chul

  [Photographer] (Ep. 11)

  Guest Role
• 
  Kim Mi Ra

  Chief Song [Head of JU Florida Branch] (Ep. 11)

  Guest Role
• 
  Lee Woon San

  Lee Hyeok Jun [Inseol Architecture employee] (Ep. 11)

  Guest Role
• 
  Kim Mi Ji

  Yoon Sang Eun [Inseol Architecture employee] (Ep. 11)

  Guest Role
• 
  Kim Jung Woo

  Choi Won Sik [Inseol Architecture employee] (Ep. 11)

  Guest Role
• 
  Heo Jun Seok

  Chae Jong U [JU Subcontracts & Procurement Director] (Ep. 11-12)

  Guest Role
• 
  Lee Jae U

  [Detective] (Ep. 11-12)

  Guest Role
• 
  Yun Hui Seon

  [Se Ung's driver]

  Guest Role
• 
  Lee Jeong In

  Kim Jong Won (Ep. 7)

  Guest Role
• 
  Lee Jae Hui

  Kim Min Seok [Mr. Kim's grandson] (Ep. 3-4)

  Guest Role
• 
  Park Tae Rin

  Sin Cha Il [Young] (Ep. 1, 12)

  Guest Role
• 
  Son Sang Hyeok

  [Security guard] (Ep. 7)

  Guest Role
• 
  Gil Ju Hui

  Yu Mi Gyeong [Young) (Ep. 3-4)

  Guest Role
• 
  Han Seo I

  Lee Yeon Ji [Junior manager of Finance] (Ep. 4)

  Guest Role
• 
  Park Se Hoon

  [Detective] (Ep. 11-12)

  Guest Role
• 
  Kim Da Han Guest Role
• 
  Lim Young Joon

  [Doctor] (Ep. 12)

  Guest Role
• 
  Jeon Soo Ji

  [Chae Jong U's wife] (Ep. 12)

  Guest Role
• 
  Kim Jae Il

  [JU security guard] (Ep. 12)

  Guest Role
• 
  Gi Hwan

  [JU security guard] (Ep. 12)

  Guest Role
• 
  Lee Won Jin

  [Hospital security guard] (Ep. 12)

  Guest Role
• 
  Moon Hak Jin

  [JU Construction employee] (Ep. 12)

  Guest Role
• 
  Jung Jin Young

  Kim Si Hyun [Director of Public Sector Inspection] (Ep. 12)

  Guest Role

Bit part

• 
  Byeon Chang Yeol

  [Gambler]

  Bit part