| Person | Type | Job | Role(s) |
|---|---|---|---|
 Ryota Yamaguchi | Crew | Writing | Original Story |
 Naruhisa Arakawa | Crew | Writing | Writer |
Kim Su-hoon | Crew | Directing | Director, Executive Producer |
 Winter | Crew | Sound | Theme Song Performance |
신현덕 | Crew | Production | Producer |
 Cho Hyun-jung | Cast | Actress | Trouping (voice) |
 Hong So-young | Cast | Actress | Stella (voice) |
 Um Sang-hyun | Cast | Actor | Mr. Bus Stop / Freezeping (voice) |
Yeo Min-jeong | Cast | Actress | Belita / Girl (voice) |
Hong Beom-gi | Cast | Actor | Dr. Monziu / General Teenieping (voice) |
 Lee Ji-hyun | Cast | Actress | Romi (voice) |
Choi Nak-yoon | Cast | Heart King / Monster Trouping (voice) | |
Jo Kyoung-i | Cast | Heartsping (voice) | |
Kim Eun-ah | Cast | Happying / Young Liam / Girl's Mom (voice) | |
Jang Ye-na | Cast | Actress | Lalaping / Maid / Stickping (voice) |
 Ryu Seung-gone | Cast | Actor | Liam / Butler (voice) |
| Person | Type | Job | Role(s) |
