Kim Si-eun

So-hee

Bae Doona

Yoo-jin

Jung Hoe-ryn

Jun-hee

Kang Hyun-oh

Tae-joon

Bahk Woo-young

Dong-ho

Lee In-young

Eun-ah

Park Hui-eun

So-hee's Mother

Kim Yong-jun

So-hee's Father

Sim Hee-seop

Former Team Manager

Yoon Ga-i

Ji-won

Jung Soo-ha

Jung-in / Customer Oh Joo-yeon (voice)

Park Yoon-hee

Director

Choi Hee-jin

Newcomer Team Manager

Yoo Jeong-ho

Head Manager

Moon Jung-woong

Headquarters Staff 1 / Customer Choi Cheol-woong (voice)

Kim Hee-won

Call Center Colleague Seon-ae

Park Seo-kyoung

Call Center Colleague Park Seul-ki

Kim Woo-kyum

Detective Bae

Song Yo-sep

Chief of Criminal Division

Heo Jeong-do

Homeroom Teacher

Park Soo-young

Vice Principal

Kwon Da-ham

Chief of Staff

Hwang Jeong-min

School Vice-Commissioner

Han Hye-ji

Former Team Manager's Wife

Eom Ok-ran

Bar Owner

Lee Hwa-young

Practice Room Member Hwa-young

Cho Yu-jin

Practice Room Member Min-ji

Ko Ha-eun

Call Center Agent

Park Gun-joo

Tae-joon's Bullying Colleague

Cha Woo-young

Tae-joon's Factory Colleague

Lee Yoon-ji

Female Employee on Her Way to Work

Kim Ye-na

Police Station Staff

Chu Eun-kyeong

Police Station Staff