Youth of May

Composer

• 
  Park Se Jun

Director

• 
  Song Min Yeop
• 
  Lee Dae Kyung

Screenwriter

• 
  Lee Kang

Main Role

• 
  Lee Do Hyun

  Hwang Hee Tae

  Main Role
• 
  Go Min Si

  Kim Myung Hee

  Main Role
• 
  Lee Sang Yi

  Lee Soo Chan

  Main Role
• 
  Keum Sae Rok

  Lee Soo Ryun

  Main Role

Support Role

• 
  Oh Man Suk

  Hwang Ki Nam [Hee Tae's father]

  Support Role
• 
  Um Hyo Sup

  Lee Chang Geun [Lee siblings' father]

  Support Role
• 
  Kim Won Hae

  Kim Hyeon Cheol [Myeong Hui's father]

  Support Role
• 
  Hwang Young Hee

  Choi Soon Nyeo [Housekeeper]

  Support Role
• 
  Shim Yi Young

  Song Hae Ryeong [Hee Tae's stepmother]

  Support Role
• 
  Kim Eun Soo

  Lee Gwang Gyu

  Support Role
• 
  Park Se Hyun

  Lee Jin Ah

  Support Role
• 
  Kim Yi Kyeong

  Oh In Young

  Support Role
• 
  Kwon Ji Woo

  Kim Kyung Soo [Teenager]

  Support Role
• 
  Jung Wook Jin

  Choi Jeong Haeng

  Support Role
• 
  Rho Sang Bo

  Hong Sang Pyo

  Support Role
• 
  Kim Bo Jung

  Kim Min Joo

  Support Role
• 
  Joo Bo Young

  Park Sun Min

  Support Role
• 
  Lee Kyu Sung

  Jung Hye Gun

  Support Role
• 
  Jang Won Hyuk

  Yoo Byeong Cheol

  Support Role
• 
  Park Cheol Min

  Choi Byeong Girl

  Support Role
• 
  Heo Jung Do

  Lee Gyeong Pil

  Support Role
• 
  Choi Seung Hoon

  Hwang Jung Tae [Teen]

  Support Role
• 
  Jo Yi Hyun

  Kim Myung Soo [Child]

  Support Role
• 
  Lee Hwang Ui

  Han Suk Joong

  Support Role
• 
  Choi Moon Soo

  [Han Suk Joong's wife]

  Support Role
• 
  Kim In Sun

  Jang Suk Chul [Teen]

  Support Role
• 
  Lee Bong Joon

  [Student protestor]

  Support Role
• 
  Cha Sang Mi

  [Maid in Hee Tae's home]

  Support Role

Guest Role

• 
  Choi Won Young

  Hwang Hee Tae [Adult] (Ep. 12)

  Guest Role
• 
  Jeong Hee Tae

  Kim Kyung Soo [Adult] (Ep. 11-12)

  Guest Role
• 
  Kwon Eun Bin

  Yu Jin [Hee Tae's ex] (Ep. 1)

  Guest Role
• 
  Kwon Hyuk Hyun

  Lee In Jae (Ep. 1)

  Guest Role
• 
  Lee Joong Yul

  Mr. Kim (Ep. 1)

  Guest Role
• 
  Kwak Ja Hyung

  Sang Gon (Ep. 1)

  Guest Role
• 
  Bae Seong Il

  [Police chief] (Ep. 1)

  Guest Role
• 
  Yoo Soon Woong

  [Priest] (Ep. 1, 8)

  Guest Role
• 
  O Gyu Taek

  [Used car dealer] (Ep. 1)

  Guest Role
• 
  Jin Yong Wook

  Hyun Chul (Ep. 2)

  Guest Role
• 
  Jung Ji Ahn

  [Bus attendent] (Ep. 2)

  Guest Role
• 
  Gu Da Song

  Bo Yeon (Ep. 3, 9)

  Guest Role
• 
  Kim Hyun

  [Lee siblings' aunt] (Ep. 3)

  Guest Role
• 
  Lee Young Jin

  [Doctor] (Ep. 3)

  Guest Role
• 
  Choi Yi Sun

  [Soo Chan's co-worker] (Ep. 3, 6)

  Guest Role
• 
  Kim Jin Sung

  Ki Nam [Student]

  Guest Role
• 
  Hong Boo Hyang

  [Lee family's maid]

  Guest Role
• 
  Kim Gun Soo

  [Young man]

  Guest Role
• 
  Park Hye Jin

  [Grandmother]

  Guest Role
• 
  Park Eun Young

  [Sung Wook's mother] (Ep. 12)

  Guest Role
• 
  Nam Do Yoon

  [Student] (Ep. 9)

  Guest Role
• 
  Jung Joon

  Jin Gyu

  Guest Role
• 
  Kim Seong In

  [Soldier]

  Guest Role
• 
  Jo Ji Hyun

  [Bus station employee] (Ep. 10)

  Guest Role
• 
  Lee Jae Woo

  [Hwang Ki Nam's guy] (Ep.8)

  Guest Role
• 
  Jang Do Ha

  Lee Seo On (Ep. 12)

  Guest Role
• 
  Kim Joo Yeon

  [Nurse] (Ep. 12)

  Guest Role
• 
  Ha Sung Min

  [Sung Wook's father] (Ep. 12)

  Guest Role
• 
  Nam Tae Woo

  [Plainclothes agent]

  Guest Role
• 
  Kim Jun Won

  General Choi Jin Young

  Guest Role
• 
  Yoon Seung Hoon

  [Paramedic] (Ep. 9-10)

  Guest Role
• 
  Ahn Jong Jin

  [Student] (Ep. 8)

  Guest Role
• 
  No Kyung

  [Sergeant] (Ep. 10)

  Guest Role
• 
  Park Yong

  Byun Sung Soo (Ep. 10)

  Guest Role
• 
  Yoo Tae Joo

  [Soldier] (Ep. 12)

  Guest Role
• 
  Gu Bon Jin

  [Hospital exec.] (Ep. 9)

  Guest Role
• 
  Lee Joo Ahn

  [Plainclothes agent]

  Guest Role
• 
  Im Woo Chan

  [Plainclothes agent] (Ep. 12)

  Guest Role
• 
  Kim Chul Yoon

  Sang Min (Ep. 8)

  Guest Role
• 
  Gu Jun Woo

  Sung Il

  Guest Role
• 
  Kim Nam Jin

  [Orphanage nun] (Ep. 4)

  Guest Role
• 
  Jun Joon Woo

  [Soo Chan's employee] (Ep. 8, 9)

  Guest Role
• 
  Sung Ki Yoon

  Hwang Jung Tae [Adult] (Ep. 12)

  Guest Role
• 
  Hong Eun Jeong

  [Jung Tae's secretary] (Ep. 12)

  Guest Role
• 
  Lee Sang Hwa

  [Violent guy in hospital] (Ep. 12)

  Guest Role
• 
  Seong No Jin

  Kim Myung Soo [Adult] (Ep. 12)

  Guest Role
• 
  Choi Nam Uk

  [Taxi driver] (Ep. 8)

  Guest Role
• 
  Jang Tae Min

  [Ambulance driver] (Ep. 8)

  Guest Role
• 
  Han Myung Hwan

  Kim Sung Wook (Ep. 9)

  Guest Role
• 
  Ko Na Young

  [Restaurant owner] (Ep. 12)

  Guest Role
• 
  Go Gun Ryung

  [Bus rider] (Ep. 9)

  Guest Role
• 
  Lee Ju Young

  [Sports team boy]

  Guest Role
• 
  Kim Tae Bum

  Park Chul Bum [Coach]

  Guest Role
• 
  Yun Jin Seong

  Jang Seok Chul (Ep. 12)

  Guest Role
• 
  Jo Kyung Jae

  Sports team boy

  Guest Role
• 
  Jin Tae Yeon

  Lee Hyun Shim

  Guest Role
• 
  Han Sa Myung

  Won Seok (Ep. 4)

  Guest Role
• 
  Kim Ji Hye

  [Nurse #1]

  Guest Role
• 
  Won Ha Neul

  (Ep. 7-8, 10)

  Guest Role