Cheer Up, Mr. Lee

Composer

• 
  Bang Jun Seok
• 
  Kim Ji Hye

Director

• 
  Lee Kye Byuk

Editor

• 
  Yang Jin Mo

Screenwriter

• 
  Jang Yoon Mi

Visual Effects

• 
  Kim Yong Soo

Main Role

• 
  Cha Seung Won

  Cheol Su

  Main Role
• 
  Uhm Chae Young

  Saet Byeol

  Main Role
• 
  Park Hae Joon

  Young Soo

  Main Role

Support Role

• 
  Kim Hye Ok

  Hee Ja [Saet Byul's grandmother]

  Support Role
• 
  Ahn Kil Kang

  Mr. Kim

  Support Role
• 
  Jeon Hye Bin

  Eun Hee

  Support Role
• 
  Ryu Han Bi

  Min Jung

  Support Role
• 
  Jo Han Chul

  Duk Goo

  Support Role
• 
  Sung Ji Ru

  Jung Gwon

  Support Role
• 
  Shin Hyun Been

  Hye Young

  Support Role
• 
  Kim Bup Rae

  Boss Yang

  Support Role
• 
  Ji Yi Soo

  Ji Ahn

  Support Role
• 
  Jung Won Joong

  [Chief Fireman]

  Support Role
• 
  Yoon Byung Hee

  Duk Chang

  Support Role
• 
  Lee Seung Won

  Duk Soo

  Support Role
• 
  Oh Tae Kyung

  Gi Sub

  Support Role
• 
  Jung Jun Won

  Choong Shik

  Support Role
• 
  An Min Yeong

  Hyun Sook

  Support Role
• 
  Jeong Hee Tae

  [Police Officer]

  Support Role

Guest Role

• 
  Kwon Soon Joon

  [Kid Patient]

  Guest Role
• 
  An Seong Won

  [Young patient #1]

  Guest Role
• 
  Jung Hyun Woo

  [Samsung Lions player #1]

  Guest Role
• 
  Ryu In Young

  [Pedestrian]

  Guest Role

Bit part

• 
  Lee Seung Yuop

  [Himself]

  Bit part
• 
  Yoo Yeon

  [Hair Salon Owner]

  Bit part
• 
  Nam Tae Boo

  [Guest 2]

  Bit part
• 
  Hwang Sung Joon

  [Mobster]

  Bit part
• 
  Han Dong Won

  [Survivor]

  Bit part
• 
  Song Jae Ryong

  [Second Boss]

  Bit part
• 
  Kim Gi Jung

  [Police officer]

  Bit part
• 
  Shin Ki Won

  [Daegu baseball stadium staff]

  Bit part
• 
  Lee Geum Ju

  Mi Jin [Trashy makjang drama]

  Bit part
• 
  Baek Eun Kyung

  [Daebok Kalguksu customer]

  Bit part
• 
  Shin Jung Yoon

  [Pedestrian crossing]

  Bit part
• 
  Choi Soo Hyun

  [Ticket counter employee]

  Bit part
• 
  Kang Min Jae

  [Criminal in lock-up]

  Bit part
• 
  Oh So Hyun

  [Seoul Express Bus Terminal female employee]

  Bit part
• 
  Hwang Jae Pil

  [Doctor]

  Bit part
• 
  Jung Young Sub

  Cheol Soo

  Bit part
• 
  Kyung In Sun

  [Narrator]

  Bit part
• 
  Gu Jun Woo

  [kid patient 2]

  Bit part
• 
  Seo Dong Oh

  [Noodle restaurant customer 1]

  Bit part
• 
  Lee Na Yeon

  [Hospital girl]

  Bit part
• 
  Ji Han Ah

  [Young patient's mother]

  Bit part