A Good Day to Be a Dog

Art Director

• 
  Heo Seo Hyeong

Cinematography

• 
  Kim Jung Wook

Director

• 
  Kim Dae Woong

Original Creator

• 
  Lee Hye

Producing Director

• 
  Kwon Sung Chang

Screenwriter

• 
  Baek In Ah

Main Role

• 
  Cha Eun Woo

  Jin Seo Won

  Main Role
• 
  Park Gyu Young

  Han Hae Na

  Main Role
• 
  Lee Hyun Woo

  Lee Bo Gyeom

  Main Role

Support Role

• 
  Yoon Hyun Soo

  Choi Yul

  Support Role
• 
  Kim Yi Kyeong

  Min Ji A

  Support Role
• 
  Ryu Abel

  Han Yu Na

  Support Role
• 
  Jung Young Joo

  Sin Mi Seon

  Support Role
• 
  Kim Hong Pyo

  Han Pan Dong

  Support Role
• 
  Cho Jin Se

  Song U Taek

  Support Role
• 
  Kim Hae Jun

  [Uncle]

  Support Role
• 
  Lee Seo El

  Yun Chae A

  Support Role
• 
  Song Young Ah

  Cheon Song I

  Support Role
• 
  Yoo Seung Mok

  [Vice principal]

  Support Role
• 
  Jo Ah Young

  Song Da Eun

  Support Role
• 
  Kang Soo Bin

  Kwon Ri Ae

  Support Role
• 
  Kim Min Ji

  Chu So Yeon

  Support Role
• 
  Shin Jun Hang

  Cho Jun Seo

  Support Role
• 
  Lee Seung Joon

  O Sang Su [Yu Na's ex]

  Support Role
• 
  Lee Jong Wook

  Min Sik

  Support Role
• 
  Park Hae In

  Yun Ji

  Support Role
• 
  Shim Wan Joon

  [PE teacher]

  Support Role
• 
  Kim Esther

  Kang Hyo Jin

  Support Role

Guest Role

• 
  Kim Min Seok

  Kang Eun Hwan

  Guest Role
• 
  Son Byeong Hoon

  [Kissing student] (Ep. 1)

  Guest Role
• 
  Han Hyun Jun

  [Bully] (Ep. 2)

  Guest Role
• 
  Kim Soo Ro

  [Taxi driver] (Ep. 2)

  Guest Role
• 
  Jung Ja Young

  [Police officer] (Ep. 2)

  Guest Role
• 
  Hyun Jin

  [Bully's mother] (Ep. 2)

  Guest Role
• 
  Shin Ha Jun

  [Teacher] (Ep. 3)

  Guest Role
• 
  Ko Kyoung Hee

  [Teacher] (Ep. 3)

  Guest Role
• 
  Jung Yu Rie

  [Salesperson] (Ep. 3)

  Guest Role
• 
  Shin Hee Chul

  [Lingerie shopper] (Ep. 3)

  Guest Role
• 
  Lee Hye Eun

  [Lingerie shopper] (Ep. 3)

  Guest Role
• 
  Jang Yong Bok

  [Marriage officiant] (Ep. 4)

  Guest Role
• 
  Kim Won Hoon

  [YouTuber] (Ep. 4, 7)

  Guest Role
• 
  Yoo Yeon Sang

  Seo In Ho (Ep. 5)

  Guest Role
• 
  Lee Ji Hyun

  Min Yu Bin (Ep. 5)

  Guest Role
• 
  Lee Jung Min

  Kim Ji Won (Ep. 5)

  Guest Role
• 
  Kim Min Ah

  Lee Chae Rin (Ep. 5)

  Guest Role
• 
  Lee Jae Yi

  Han Jae Hui (Ep. 5)

  Guest Role
• 
  Choi Jae Yoon

  Choi Yul [Young] (Ep. 5)

  Guest Role
• 
  Lee Yong Nyeo

  [Popi owner] (Ep. 6)

  Guest Role
• 
  Choi So Yool

  Cho Yeong [Young] (Ep. 8)

  Guest Role
• 
  Joo Jin Mo

  [Judiciary chief] (Ep. 10)

  Guest Role
• 
  Kim Geun Yeong

  [Ticket booth clerk] (Ep. 11)

  Guest Role
• 
  Kim Bong Hui

  [Dog owner] (Ep. 11)

  Guest Role
• 
  Na Ho Won

  [Cho Yeong’s servant] (Ep. 11)

  Guest Role
• 
  Kim Ah Young

  Do Min Gyeong [PD] (Ep. 14)

  Guest Role
• 
  Seung You

  [Dog shelter staff] (Ep. 14)

  Guest Role
• 
  Jeong Ho Gyun

  Jung Jong Bin

  Guest Role
• 
  Baek Hyo Won

  Mi Yeong

  Guest Role
• 
  Kim Tae Yeon

  Han Yu Na [Young]

  Guest Role
• 
  Hwang Ye Won

  Han Hae Na [Young]

  Guest Role
• 
  Kim Ha Eon

  Jin Seo Won [Young]

  Guest Role
• 
  Kim Te I

  Song U Taek [Young]

  Guest Role
• 
  Kong Yi Yeon

  Choi Hyeon Yeong [Student]

  Guest Role
• 
  Lee Yo Seob

  [Eun Hwan's friend]

  Guest Role
• 
  Lee Ju Mi

  [Cho Yeong’s servant]

  Guest Role
• 
  Im Yong Soon

  [Teacher]

  Guest Role
• 
  Kong I Yeon

  Choi Hyeon Yeong

  Guest Role