정진영
Ahjussi [Future]
김설현
Seo Noona [Future]
정용화
Ahjussi [Present]
조재윤
Chaeyoon's father / Present
정해인
Ahjussi [Past]
유재석
Ahjussi [Past]
최여진
In Tak's Dance Teacher/ Present
Theo
Jongseob
Soul
Jiung
Keeho
Intak