Elenco
이지현
Romi (voice)
조경이
Heartsping (voice)
최낙윤
Heart King / Monster Truthping (voice)
여민정
Belita / Girl (voice)
홍소영
Stella (voice)
홍범기
Dr. Monziu / General Teenieping (voice)
김하영
Marie (voice)
류승곤
Liam / Butler (voice)
조현정
Truthping (voice)
김은아
Happying / Young Liam / Girl's Mom (voice)
장예나
Lalaping / Maid / Stickping (voice)
엄상현
Mr. Bus Stop / Freezeping (voice)
Equipe
김수훈
Director
민슬기
Producer
Song Mi-seon
Producer
신현덕
Producer
김수훈
Executive Producer
Jo Seong-hee
Sound
윈터
Theme Song Performance
Kim Dae-yeol
VFX Supervisor
山口亮太
Original Story
Kim Young-jin
Animation Director
荒川稔久
Writer
Kim Tae-ho
Music
강병채
Producer
Jo Yeong-gwang
Storyboard
Im Ji-eun
Production Design
Kim Yu-jin
Production Design
Seo Bo-guk
Art Direction