Dream High

Director

• 
  Lee Eung Bok
• 
  Kim Seong Yoon

Screenwriter

• 
  Park Hye Ryun

Main Role

• 
  Bae Suzy

  Ko Hye Mi

  Main Role
• 
  Kim Soo Hyun

  Song Sam Dong

  Main Role
• 
  Ok Taec Yeon

  Jin Gook / Hyun Shi Hyuk

  Main Role
• 
  Ham Eun Jung

  Yoon Baek Hee

  Main Role
• 
  Jang Woo Young

  Jason

  Main Role
• 
  IU

  Kim Pil Suk

  Main Role

Support Role

• 
  Uhm Ki Joon

  Kang Oh Hyuk

  Support Role
• 
  Lee Yoon Ji

  Shi Kyung Jin

  Support Role
• 
  Park Jin Young

  Yang Jin Man

  Support Role
• 
  Jang Hee Soo

  [Baek Hee's mother]

  Support Role
• 
  Han Ji Hoo

  Park Do Joon

  Support Role
• 
  Jung Min Joo

  Jung Ah Jung

  Support Role
• 
  Lee Yoon Mi

  Maeng Seung Hee

  Support Role
• 
  Baek Won Gil

  Gong Min Chul

  Support Role
• 
  Jeon Ah Min

  Jo In Sung

  Support Role
• 
  Lee Hye Sook

  Song Nam Boon

  Support Role
• 
  Kang Yi Suk

  Jin Gook [Young]

  Support Role
• 
  Han Bo Reum

  Ha So Hyun

  Support Role
• 
  Park Jin Sang

  Jun Tae San

  Support Role
• 
  Park Hyuk Kwon

  Go Byung Jik

  Support Role
• 
  Lee Byung Joon

  Shi Bum Soo

  Support Role
• 
  Ahn Kil Kang

  Ma Doo Shik

  Support Role
• 
  Ahn Seo Hyun

  Go Hye Sung

  Support Role
• 
  Choi Il Hwa

  Hyun Moo Jin

  Support Role
• 
  Ahn Sun Young

  Kang Oh Sun

  Support Role
• 
  Yoon Ji Yoo

  Lee Ri A

  Support Role
• 
  Kim Yoon Tae

  [Ring reporter]

  Support Role
• 
  Park Won Sang

  Yun Seong Gil [Group K president]

  Support Role

Guest Role

• 
  Sumi Jo

  [Herself] (Ep. 1)

  Guest Role
• 
  Kim Hyun Joong

  [Himself] (Ep. 1)

  Guest Role
• 
  Bae Yong Joon

  Jung Ha Myung (Ep. 1-4)

  Guest Role
• 
  Kobayashi Yutaka

  [Singer / part time worker] (Ep. 10)

  Guest Role
• 
  Lee Teuk

  [Himself] (Ep. 13)

  Guest Role
• 
  Eunhyuk

  [Himself] (Ep. 13)

  Guest Role
• 
  Park Eun Bin

  Go Hye Sung (Ep. 16)

  Guest Role
• 
  Min

  [Flash mob dancer] (Ep. 16)

  Guest Role
• 
  Jung Jin Woon

  [Flash mob dancer] (Ep. 16)

  Guest Role
• 
  Jo A Young

  [Baek Hee’s Kirin student] (Ep. 16)

  Guest Role
• 
  Jun Hyun Moo

  [MC]

  Guest Role
• 
  Park Jae Woong

  [Big guy]

  Guest Role
• 
  Meng Jia

  [Flash mob dancer]

  Guest Role
• 
  Fei

  [Flashmob dancer]

  Guest Role
• 
  Bae Noo Ri

  [Kirin High student]

  Guest Role
• 
  Ahn Jae Won

  [Kirin High student]

  Guest Role
• 
  Joo Young Hoon

  [Composing teacher]

  Guest Role
• 
  Park Hwi Soon

  [Jin Gook's roommate]

  Guest Role
• 
  Im Seul Ong

  [Flash mob paramedic]

  Guest Role
• 
  Choi Jung Nam

  [Wife of the president]

  Guest Role
• 
  Nichkhun

  [Lee Ri Ah's CF partner]

  Guest Role
• 
  Hwang Chan Sung

  [Oh Sun's imaginary boy]

  Guest Role
• 
  Gu Jun Yeop

  [Host of dance competition]

  Guest Role
• 
  Shownu

  [Woo Young's backup dancer]

  Guest Role
• 
  Baek Da Eun

  [Kirin High student | Dalshabet member]

  Guest Role
• 
  Kim Young Hee Guest Role
• 
  Young K Guest Role
• 
  Jo Ga Eun Guest Role
• 
  Serri Guest Role
• 
  Bang Joong Hyun Guest Role

Unknown

• 
  Kim Kyung Ryong Unknown