Our Beloved Summer (2021)

Assistant Director

• 
  Lee Dan

Composer

• 
  Nam Hye Seung

Director

• 
  Kim Yoon Jin

Screenwriter

• 
  Lee Na Eun

Main Role

• 
  Choi Woo Shik

  Choi Woong

  Main Role
• 
  Kim Da Mi

  Kook Yeon Soo

  Main Role
• 
  Kim Sung Cheol

  Kim Ji Ung

  Main Role
• 
  Roh Jeong Eui

  "NJ"

  Main Role

Support Role

• 
  Ahn Dong Goo

  Koo Eun Ho

  Support Role
• 
  Park Jin Joo

  Lee Sol Yi

  Support Role
• 
  Seo Jung Yeon

  Lee Yeon Ok

  Support Role
• 
  Park Won Sang

  Choi Ho

  Support Role
• 
  Cha Mi Kyung

  Kang Ja Kyung

  Support Role
• 
  Jeon Hye Won

  Jung Chae Ran

  Support Role
• 
  Jo Bok Rae

  Park Dong Il

  Support Role
• 
  Lee Seung Woo

  Im Tae Hoon

  Support Role
• 
  Heo Jun Seok

  Bang Yi Hoon

  Support Role
• 
  Park Yeon Woo

  Kim Myung Ho

  Support Role
• 
  Yoon Sang Jung

  Ji Ye In

  Support Role
• 
  Cha Seung Yeup

  Kang Ji Woon

  Support Role
• 
  Park Do Wook

  Park Chi Sung

  Support Role
• 
  Ahn Soo Bin

  Ahn Mi Yeon

  Support Role
• 
  Jung Kang Hee

  Chang Shik

  Support Role

Guest Role

• 
  Seo Han Gyeol

  Kang Min Soo

  Guest Role
• 
  Lee Jun Hyuk

  Jang Do Yul

  Guest Role
• 
  Kwak Dong Yeon

  Noo Ah

  Guest Role
• 
  Lee Seon Hee

  Lee Min Kyung

  Guest Role
• 
  Park Mi Hyun

  Jeong Kyeong Hee

  Guest Role
• 
  Kang Gi Doong

  Kim Jin Seob

  Guest Role
• 
  Song Ha Hyun

  Choi Woong [Young] (Ep. 1, 5, 7, 15-16)

  Guest Role
• 
  Kim Ji Hoon

  Kim Ji Woong [Young] (Ep. 1, 5, 7, 15-16)

  Guest Role
• 
  Lee Seung Jun

  [Homeroom teacher] (Ep. 1, 7)

  Guest Role
• 
  Kim Jin Goo

  [High school ceremony speaker] (Ep. 1)

  Guest Role
• 
  Lee Ji Wan

  [Yeon Soo's classmate] (Ep. 6)

  Guest Role
• 
  Min Eung Shik

  [Art teacher] (Ep. 6, 11)

  Guest Role
• 
  Moon Ha Yeon

  [Charity event volunteer] (Ep. 7)

  Guest Role
• 
  Lee Rang Seo

  [Charity event volunteer] (Ep. 7)

  Guest Role
• 
  Noh Sung Eun

  [Charity event volunteer] (Ep. 7)

  Guest Role
• 
  Choi Sol Hui

  [Charity event volunteer] (Ep. 7)

  Guest Role
• 
  Lee Se Rang

  [Villager] (Ep. 8)

  Guest Role
• 
  Uhm Hye Soo

  [Choi Woong's fan club] (Ep. 8)

  Guest Role
• 
  Park Sang Hyun

  [Restaurant diner] (Ep. 10)

  Guest Role
• 
  Kim Bi Bi

  Kang Yeon Ju (Ep. 11)

  Guest Role
• 
  Bae Bo Ram

  [Interviewer] (Ep. 11)

  Guest Role
• 
  Jung Ae Hwa

  [Jujubes seller] (Ep. 11)

  Guest Role
• 
  Kim Sung Yong

  [Jjongjjong's owner] (Ep. 11)

  Guest Role
• 
  Kim Ye Na

  [Student dog walker] (Ep. 11)

  Guest Role
• 
  Kim Joo Heon

  [Himself / Voiceover] (Ep. 12)

  Guest Role
• 
  Hong A Ron

  [Sol Yi's blind date] (Ep. 12)

  Guest Role
• 
  Kang Ro Chae

  [Interviewer] (Ep. 13)

  Guest Role
• 
  Oh Byeol Ha

  Kook Yeon Su [Young] (Ep. 14)

  Guest Role
• 
  Choi Yi Sun

  [Director] (Ep. 14)

  Guest Role
• 
  Kim Na Eun

  [Playground bully girl] (Ep. 14)

  Guest Role
• 
  Won Chun Gyu

  [Crew member] (Ep. 15)

  Guest Role
• 
  Im Yu Ran

  [Diner leaving] (Ep. 16)

  Guest Role
• 
  Kwak Na Yeon

  [Diner leaving] (Ep. 16)

  Guest Role
• 
  Noreen Joyce Guerra

  [Office worker]

  Guest Role
• 
  Ahn Se Eun Guest Role
• 
  Won Ha Neul

  [NJ's backup dancer]

  Guest Role

Unknown

• 
  Kim Min Ho Unknown