- Choi Tae-Yang
- Theo (future)
- Kim Jong-Seob
- Jongseob (future)
- Haku Shota
- Soul (future)
- Yoon Kee-ho
- Keeho (past)
- Choi Ji-ung
- Jiung (past)
- Hwang In-tak
- Intak (present)
- Lee Chae-yun
- Chae-yoon
- Jung Hae-in
- Ahjussi (past)
- Yoo Jae-suk
- Ahjussi (past)
- Jo Jae-yoon
- Chaeyoon's father
- Jung Jin-young
- Ahjussi (future)
- Kim Seol-hyun
- Seo Noona (future)
- Choi Yeo-jin
- Intak's dance teacher
- Jung Yong-hwa
- Ahjussi (present)
