On the Line

Byun Yo-han

Seo-joon

Kim Moo-yul

Kwak Pro

Kim Hie-won

Lee Gyu-ho

Park Myung-hoon

General Manager

Lee Zoo-young

Kkang-chil

Jo Jae-yun

Deok-pal

Lee Kyu-sung

The Youngest

Won Jin-ah

Mi-yeon

Lee Woon-san

Manager

Ok Ja-yeon

Detective 1

Yun Jong-seok

Detective 2

Jo Hyun-sik

Voice 1

Yoon Byung-hee

Voice 2

Kim Ga-young

Voice 3

Park Chan-guk

Uncle

Hong Kyung

Jobseeker

Lee Dong-yong

Worker

Choi Byung-mo

Park

Son Jong-hak

Manager

Min Sung-wook

Jang Gyeong-pil