Jung-in / Customer Oh Joo-yeon (voice)
Headquarters Staff 1 / Customer Choi Cheol-woong (voice)
Call Center Colleague Yoo-jeong
Call Center Colleague Seon-ae
Call Center Colleague Park Seul-ki
Detective Kim / Customer Yoon Won-sang (voice)
Chief of Criminal Division
Former Team Manager's Wife
Former Team Manager's Son
Practice Room Member Soo-yeong
Practice Room Member Hwa-young
Practice Room Member Jae-yeon
Practice Room Member Min-ji
Practice Room Member Ji-ho
Practice Room Member Eun-jeong
New Colleague Myeong-kyeong / Customer Koo Min-seo (voice)
Call Center Agent / Customer Lee Joo-bin (voice)
Tae-joon's Bullying Colleague
Tae-joon's Factory Colleague
Tae-joon's Factory Colleague
Tae-joon's Factory Colleague
Parking Lot Security Guard
Female Employee on Her Way to Work
Dong-ho's Factory Colleague
Dong-ho's Factory Colleague
Dong-ho's Factory Colleague
Dong-ho's Factory Colleague
Dong-ho's Factory Colleague
Dong-ho's Factory Colleague
Technical Team Staff / Customer Cho Sang-wook (voice) / Customer Jeong Doo-wan (voice)
Customer Seo Jang-woo (voice)
