When the Devil Calls Your Name

Cinematography

• 
  Jung Tae Keun

Composer

• 
  Copykumo

Director

• 
  Min Jin Gi

Screenwriter

• 
  Noh Hye Young
• 
  Ko Nae Ri

Main Role

• 
  Jung Kyung Ho

  Ha Rip / Seo Dong Cheon

  Main Role
• 
  Park Sung Woong

  Mo Tae Gang / Ryu / "Devil"

  Main Role
• 
  Lee Seol

  Kim I Gyeong / "Kelly"

  Main Role
• 
  Lee El

  Ji Seo Yeong

  Main Role

Support Role

• 
  Kim Hyung Mook

  Lee Chung Ryeol [Co-CEO of Soul Entertainment / Liver and Gallbladder singer]

  Support Role
• 
  Kim Won Hae

  Kong Su Rae [I Gyeong's friend]

  Support Role
• 
  Oh Eui Shik

  Kang Ha / Jung In Seok [Ha Rip's housemate]

  Support Role
• 
  Yoon Kyung Ho

  Mr. Kang [Tae Kang's secretary]

  Support Role
• 
  Nam Ji Hyun

  Yoo Dong Hui [I Gyeong's best friend]

  Support Role
• 
  Song Kang

  Luka Aleksijević / Ye Seong Ho [Ha Rip's secretary]

  Support Role
• 
  So Hee Jung

  Jung Seong Sim [I Gyeong's mother]

  Support Role
• 
  Choi Yoo Song

  Ye Seon A [Luka's mother] (Ep. 10)

  Support Role
• 
  Lee Hwa Kyum

  Ju Ra In [Idol]

  Support Role
• 
  Im Ji Kyu

  Kim Gyeong Su [Police officer]

  Support Role
• 
  Oh Jae Kyun

  Police Sergeant O

  Support Role
• 
  Jung Gi Sub

  Kim Taek Sang [I Gyeong's step-father]

  Support Role

Guest Role

• 
  Ko Eun Seo

  Ko Eun Seo (Ep. 1)

  Guest Role
• 
  Song Young Jae

  [Go player] (Ep. 1)

  Guest Role
• 
  Shin Dam Soo

  [Drunk driver] (Ep. 1)

  Guest Role
• 
  Kang Hoon

  [Assailant] (Ep. 1-2)

  Guest Role
• 
  Kim Hak Seon

  (Ep. 1-2)

  Guest Role
• 
  Choi Woo Hyuk

  Lee Chung Ryeol [Young] (Ep. 1, 4, 8-9, 15)

  Guest Role
• 
  Nam Myung Ryul

  Song Yeon Mo [Chairman] (Ep. 1, 8)

  Guest Role
• 
  Lee Gook Joo

  [Woman who sold her soul] (Ep. 4)

  Guest Role
• 
  E:U

  [Herself] (Ep. 4)

  Guest Role
• 
  Kim Si Hyeon

  [Herself] (Ep. 4)

  Guest Role
• 
  Mia

  [Herself] (Ep. 4)

  Guest Role
• 
  Onda

  [Herself] (Ep. 4)

  Guest Role
• 
  Aisha

  [Herself] (Ep. 4)

  Guest Role
• 
  Wang Yi Ren

  [Herself] (Ep. 4)

  Guest Role
• 
  Lee Jung Eun

  Lee Jeung Eun [Landlord's ex-wife] (Ep. 5)

  Guest Role
• 
  Lee Han Wi

  Lee Han Wi [I Gyeong's landlord] (Ep. 5)

  Guest Role
• 
  Yoo Sung Yeol

  (Ep. 6)

  Guest Role
• 
  Kim Ha Neul

  (Ep. 7)

  Guest Role
• 
  Nam Woo Hyun

  [Idol Festival MC] (Ep. 5)

  Guest Role
• 
  Kwon Hyuk

  [Messenger] (Ep. 10-13)

  Guest Role
• 
  Nam Da Reum

  Ryu [Young] (Ep. 11)

  Guest Role
• 
  Ryu Hye Rin

  Jung Hye Won [In Seok's sister] (Ep. 12-14)

  Guest Role
• 
  Yeon Seung Ho

  Sang Ho [Actor] (Ep. 13)

  Guest Role
• 
  Lee Sang Hee

  [New messenger] (Ep. 13-16)

  Guest Role
• 
  Jeon Jin Ki

  [Producer] (Ep. 14)

  Guest Role
• 
  Kim Ye Jun

  Luka Aleksijević [Young]

  Guest Role
• 
  Jung Won Young

  Si Ho

  Guest Role
• 
  Park Yun

  Ko Sang Hui [Soul Entertainment team leader]

  Guest Role
• 
  Lee Chae Bin

  Woo Ram

  Guest Role
• 
  Yoo Ji Yeon

  [Mr. Kang's wife]

  Guest Role
• 
  Lee Bong Ryun

  [Nurse]

  Guest Role
• 
  Moon Ji Ae

  [Host]

  Guest Role
• 
  Kwon Hyuk Bum

  [Actor]

  Guest Role
• 
  Park Jae Wan

  [Chief judge]

  Guest Role
• 
  Ahn Seok Hyun

  [Bouquet flower boy]

  Guest Role
• 
  Song Chang Gyu

  [Relentless relative]

  Guest Role
• 
  Park Ji Ho

  [Reporter]

  Guest Role
• 
  Jang Yu Jin

  [Reporter]

  Guest Role
• 
  You Chae Eun

  [Alumna]

  Guest Role
• 
  Tae Yul

  [Investor]

  Guest Role
• 
  So Yun Ho

  [Prison guard]

  Guest Role
• 
  Park Sun Ah

  Ph.d Kim

  Guest Role
• 
  Kim Joo Hee

  [Lawyer]

  Guest Role
• 
  Kim Yo Han

  [Music industry worker]

  Guest Role
• 
  Shin Ki Hwan

  [Chauffeur]

  Guest Role
• 
  Kim Gi Hyeon

  [Firefighter]

  Guest Role
• 
  Kim Shi Won Guest Role
• 
  Lee Hwa Young Guest Role
• 
  Kwak Ye Heon Guest Role

Unknown

• 
  Go Yong Hwa Unknown
• 
  Je Seung Hyun Unknown
• 
  Park Sung Il Unknown
• 
  Kim Hyun Chang Unknown
• 
  Kim Wang Yong Unknown
• 
  Lee Eun Jin Unknown
• 
  Ryu In Young Unknown