Sisyphus: The Myth

Director

• 
  Jin Hyeok
• 
  Kim Seung Ho

Martial Arts Director

• 
  Yang Gil Yeong

Screenwriter

• 
  Lee Je In
• 
  Jeon Chan Ho

Main Role

• 
  Cho Seung Woo

  Han Tae Sul

  Main Role
• 
  Park Shin Hye

  Kang Seo Hae

  Main Role
• 
  Kim Byung Chul

  Seo Won Ju / "Sigma"

  Main Role

Support Role

• 
  Sung Dong Il

  President Park [President of Asia Mart]

  Support Role
• 
  Tae In Ho

  Eddie Kim / Kim Seung Bok [Tae Sul's friend / Co-founder of Quantum & Time]

  Support Role
• 
  Chae Jong Hyeop

  Sun / Choi Jae Sun [Chinese restaurant delivery guy]

  Support Role
• 
  Jung Hye In

  Kim Seo Jin [Psychiatrist]

  Support Role
• 
  Kim Jong Tae

  Kang Dong Gi [Seo Hae's father / Police officer]

  Support Role
• 
  Choi Jung Woo

  Hwang Hyun Seung [Chief of Section 7 of the Immigration Office]

  Support Role
• 
  Go Yoon

  Jung Hyun Ki [Rookie DEA agent]

  Support Role
• 
  Heo Jun Seok

  Han Tae San [Tae Sul's brother / Temporary position repair man]

  Support Role
• 
  Jeon Gook Hwan

  Kim Han Yong [Seo Jin's father / President of Quantum & Time]

  Support Role
• 
  Tae Won Seok

  Yeo Bong Seon [Tae Sul's bodyguard]

  Support Role
• 
  Lee Yeon Soo

  Lee Eun Hee [Seo Hae's mother / Dong Gi's wife]

  Support Role
• 
  Yang Jun Mo

  Choi Yeon Shik [Member of the DEA]

  Support Role
• 
  Jung Ha Joon

  Uhm Sun Ho [Employee of Asia Mart]

  Support Role
• 
  Lee Myeong Ro

  Uhm Sun Jae [Employee of Asia Mart]

  Support Role
• 
  Lee Si Woo

  Bing Bing [Employee of Asia Mart]

  Support Role
• 
  Park Young Bin

  Kwon Yeok Beom [Member of the DEA]

  Support Role
• 
  Lee Joon Kyung

  Jung Woo Jin [Member of the DEA / Drone Operator]

  Support Role
• 
  Ha Yul Ri

  Choi Go Eun

  Support Role
• 
  Lim Ji Sub

  Ma Yong Seok

  Support Role

Guest Role

• 
  Kim Mi Ra

  [Flight purser] (Ep. 1)

  Guest Role
• 
  Noh Haeng Ha

  [Flight attendant] (Ep. 1)

  Guest Role
• 
  Hwang Man Ik

  [Rude airline passenger] (Ep. 1)

  Guest Role
• 
  Hwang Dong Joo

  [Co-Pilot] (Ep. 1-2)

  Guest Role
• 
  Kim Byung Chun

  [Chinese restaurant owner] (Ep. 1-2)

  Guest Role
• 
  Lee Jae Eun

  [Sun's landlord] (Ep. 2)

  Guest Role
• 
  Lee Jae Won

  Kim Dong Hyun [Fund manager] (Ep. 1, 8)

  Guest Role
• 
  Lee Tae Geom

  [Detective] (Ep. 2)

  Guest Role
• 
  Lee Moo Nyoung

  [Man hiring day laborers] (Ep. 3)

  Guest Role
• 
  Park Young Bok

  [Day laborer] (Ep. 3)

  Guest Role
• 
  Seong Byung Sook

  [Hyun Ki's mother] (Ep. 4)

  Guest Role
• 
  Bae Seong Il

  [Dong Hyun's boss] (Ep. 4, 8)

  Guest Role
• 
  Kim Nam Jin

  [Nurse] (Ep. 4)

  Guest Role
• 
  Lee Ju Mi

  [Child's mother in the columbarium] (Ep. 4)

  Guest Role
• 
  Kim Hee Ryeong

  [Han Yong's wife] (Ep. 6)

  Guest Role
• 
  Lee So Yun

  [Dong Hyun's wife] (Ep. 8)

  Guest Role
• 
  Ma Jung Pil

  [Executive] (Ep. 9)

  Guest Role
• 
  Hwang Bo Un

  [Crosswalk pedestrian] (ep.9)

  Guest Role
• 
  Baek Seung Hyun

  [Ye Ji's father] (Ep. 9)

  Guest Role
• 
  Lee Seung Hyung

  [Jaae Hospital executive] (Ep. 9)

  Guest Role
• 
  Son Seul Gi

  Hwang Ji Yeong (Ep. 10)

  Guest Role
• 
  Jo Hyun Woo

  Supervisor Ahn [Doctor] (Ep. 10, 14)

  Guest Role
• 
  Kim Tae Hoon

  [Police officer] (Ep. 10)

  Guest Role
• 
  Ahn Seok Hyun

  [Hwami orphanage boy] (Ep. 10)

  Guest Role
• 
  Jung Chung Gu

  [Funeral man] (Ep. 11)

  Guest Role
• 
  Baek Sang Hee

  Jin Hee (Ep. 12)

  Guest Role
• 
  Lee Joo Won

  Seo Won Ju [Young] (Ep. 12)

  Guest Role
• 
  Kwak So Young

  [Teacher] (Ep. 12)

  Guest Role
• 
  Gu Jun Woo

  [Bully boy] (Ep. 12)

  Guest Role
• 
  Cha Sung Je

  Han Tae San [Young]

  Guest Role
• 
  Jung Hyun Joon

  Han Tae Sul [Young]

  Guest Role
• 
  Seo Yi Soo

  Kang Seo Hae [Young]

  Guest Role
• 
  Kim Do Jin

  [Gangster]

  Guest Role
• 
  Shin Young Jin

  [Jae Sun's mother]

  Guest Role
• 
  Lee Hyun Jun

  [Member of Control Bureau]

  Guest Role
• 
  Lee Chae Hyun

  [Airplane accident kid]

  Guest Role
• 
  Jeon Se Yong

  [Lottery shop owner]

  Guest Role
• 
  Kang Hak Soo

  Prime Minister Kim (Ep. 13-14)

  Guest Role
• 
  Park Yong

  [Minister of Economy] (Ep. 13-14)

  Guest Role
• 
  Park Tae Yun

  [Bully boy] (Ep. 12)

  Guest Role
• 
  Nam Hee Soo

  [TV reporter] (Ep. 3)

  Guest Role
• 
  Kim Si Woo

  [bully boy (ep.12)]

  Guest Role
• 
  Jang Rui

  [Police officer] (Ep. 16)

  Guest Role
• 
  Kim Yun Seul

  [Airplane passenger girl] (Ep. 1)

  Guest Role
• 
  Kim Joo Eun Guest Role
• 
  Yoo In Sun

  [Sigma unit member]

  Guest Role
• 
  Kim Min

  Sigma agent

  Guest Role

Unknown

• 
  Kim Hyun Chang Unknown
• 
  Park Tae Jin Unknown