İlişkimiz Bir Olay mı? Yoksa Kaza mı?

Shin Dong-ryeok

Choi Hwa-Jin

전여진

Choi Hwa-Jin's Colleague

Gu Da-Yeon

Spigen Receptionist

데니 안

Who Joon’s Music Producer

Yoon Bok-in

Jang Hwa-jeong

박성일

Choi Hee-geon

Kim Hyung-min

Roy Ahn

송채윤

Cha Yu-ri

Lee Hyun-ji 李賢智

Ra-ra

Kim No-jin

Gang-yeon

박철민

Lee Joo-il

Park Hyun-woo

Oh In-hyung’s Manager

Park Tae-san

Spigen Employee

Jung In-Tae

Assistant Producer