Lim Chae-heonGrand Albert (voice) Moon Nam-sookJett (voice) Chang Eun-sookDizzy (voice) Hong So-youngDonnie (voice) Jeon Tae-yeolJerome (voice) Jeong Yeong-wungPaul (voice) Jamieson DeacyClara / Olivia (voice) Porter FasulloAstro (voice) Vanessa LemonidesHye Mi Mother (voice) Anne D. BernsteinSchrijver Sharon Gomes ThomasProducer Jisoo HanExecutive Producer Han Sang-hoExecutive Producer Chan Kyung JungExecutive Producer Josh SeligExecutive Producer Young Hong JeongExecutive Producer 
