Kwon Sang-woo

Kay

Lee Bo-young

Cream

Lee Beom-soo

Cha Joo-hwan

Jung Ae-yeun

Je-na

Lee Han-wi

President Kim

Shin Hyun-tak

Min-chul

Jung Jun-ho

President Lim

Lee Seung-chul

Singer A

Nam Gyu-ri

Cat Girl

Kim Heung-guk

Radio DJ

Bae Jang-su

Doctor

Ji Dae-han

Engineer

Kim Gyeong-ryong

PD Choi

Kim Jung-pal

Head of Programming

Im Cheol-hyung

Cat Girl's Song-writer

Choi Jong-hak

Engineer

Gu Wung-hoe

Young Kay

Jo Eun-ran

Min-cheol's Wife

Kim Myeong-sin

Kay's Birth Mother

Kim Kyeong-seon

Wedding Manager

Lee Ha-jin

Japanese Rocker

Won Tae-yeon

Director

Moon In-dae

Editor

Cho Keun-hyun

Art Direction

Jo Won-Jang

Producer

Kim Jang-Ryeol

Producer

Won Tae-yeon

Writer

Jang Seong-ho

Visual Effects Supervisor

Kim Tae-seong

Original Music Composer

Yun Mi-ra

Costume Design

Nam Seong-ju

Set Decoration

Lee Mo-gae

Director of Photography

Oh Seung-chul

Lighting Director