Persevere, Goo Hae Ra

Director

• 
  Kim Yong Bum
• 
  An Joon Young

Screenwriter

• 
  Jung Soo Hyun
• 
  Shin Myung Jin

Main Role

• 
  Min Hyo Rin

  Goo Hae Ra

  Main Role
• 
  Kwak Shi Yang

  Kang Se Jong

  Main Role
• 
  Jin Young

  Kang Se Chan / Ray

  Main Role

Support Role

• 
  Henry Lau

  Henry Chen Tao

  Support Role
• 
  Park Kwang Seon

  Jang Goon

  Support Role
• 
  Sung Eun

  Lee Woo Ri

  Support Role
• 
  Shim Hyung Tak

  Tae Pung

  Support Role
• 
  Jang Young Nam

  Kang Soon [Se Jong and Se Chan's mother]

  Support Role
• 
  Park Hee Jin

  Heo Myeon Ran [Hae Ra's mother]

  Support Role
• 
  Yoon Da Hoon

  Hwang Je Gook

  Support Role
• 
  Kim Min Ji

  Scarlet / Grace Hwang

  Support Role
• 
  Kim Min Jae

  Sa Gi Joon

  Support Role
• 
  Ji Seung Hyun

  Pyun Seung Min [Chief editor]

  Support Role

Guest Role

• 
  Park Hyung Sik

  Cha Dal Bong (Ep. 1)

  Guest Role
• 
  Kim Ji Soo

  [Himself] (Ep. 1)

  Guest Role
• 
  Bae Woo Hee

  [Se Jong's friend at KAIST] (Ep. 1)

  Guest Role
• 
  John Park

  [Himself] (Ep. 1-2)

  Guest Role
• 
  Park Jin Young

  [Superstar K2 judge] (Ep. 1)

  Guest Role
• 
  Yoon Jong Shin

  [Superstar K2 judge] (Ep. 1-2)

  Guest Role
• 
  Baek Ji Young

  [Superstar K2 judge] (Ep.1)

  Guest Role
• 
  Sul Woon Do

  [Superstar K2 judge] (Ep. 1)

  Guest Role
• 
  Sam Hammington

  [Himself] (Ep.3)

  Guest Role
• 
  Yoon Sang

  [Himself] (Ep. 4-5)

  Guest Role
• 
  Jo Sung Mo

  [Himself] (Ep. 7-8)

  Guest Role
• 
  Cha Sun Woo

  Robin Cha (Ep. 9)

  Guest Role
• 
  Park Seul Ki

  [Se Jong's stalker] (Ep. 11-12)

  Guest Role
• 
  Ali

  [Tae Pung's fanclub vide-president] (Ep. 12)

  Guest Role
• 
  K. Will

  [Himself] (Ep. 12)

  Guest Role
• 
  Kim Tae Woo

  [Himself] (Ep. 12)

  Guest Role
• 
  Kim Feel

  [Himself] (Ep. 12)

  Guest Role
• 
  Kim Yoo Mi

  Judy Kim [Woman on the plane sitting next to Ray] (Ep.12)

  Guest Role
• 
  Lee Jung Yeol

  Goo Chang Je [Hae Ra's father]

  Guest Role
• 
  Lee Hee Do

  Jang Gwi Dong [Jang Goon's father]

  Guest Role
• 
  Kim Ji Young

  Goo Hae Ra [Young]

  Guest Role
• 
  UGeon

  Kang Se Jong [Young]

  Guest Role
• 
  Lee Tae Woo

  Kang Se Chan [Young]

  Guest Role
• 
  Kim Hyun Wook

  [Entertainment News presenter]

  Guest Role
• 
  Park Bo Ram

  [Previous Superstar K contestant]

  Guest Role
• 
  Lee Jae Wook

  PD Lee

  Guest Role
• 
  Han Seo Yeon

  [Fake floor director]

  Guest Role
• 
  Lee Su Ryeon

  [Translator]

  Guest Role
• 
  Ahn Hye Kyung

  [Superstar K2 Super Week host]

  Guest Role
• 
  Lee Teuk

  [Show Camp MC]

  Guest Role
• 
  Moon Hee Joon

  [Himself]

  Guest Role
• 
  Kim Jun Hee

  Young Joo

  Guest Role
• 
  Hwang Seok Jeong

  Writer Uhm

  Guest Role
• 
  Oh Sang Jin

  [2015 Show MC]

  Guest Role
• 
  Lee Dong Hun Guest Role
• 
  Wow Guest Role
• 
  Park Jun Hee Guest Role
• 
  Kim Gwang In Guest Role
• 
  Eddy Kim Guest Role
• 
  Yoon Taek Guest Role
• 
  Lee Sol Gu Guest Role
• 
  Hong Rok Gi Guest Role
• 
  Seo Yoo Ri Guest Role
• 
  Rocky Guest Role
• 
  Moon Bin Guest Role
• 
  Sunmi Guest Role
• 
  Lee Lu Da Guest Role
• 
  Jane Jang

  [Herself] (Ep. 1)

  Guest Role

Unknown

• 
  Ha Ji Yong Unknown