Chui Tien-YouKin / Chan Tsz Kin Wong Yau-NamHim / Ho Ka Him Charlene Choi Chuek-YinHoi Yee / Lam Hoi Yee Michelle Wai Si-NgaYan / Leung Wing Yan Tommy Chu Pak-HongHim's elder brother Stephen Au Kam-TongHim's Father Candy ManHoi Yee's Mother Alex Cheung Kwok-MingHoi Yee's Father Lo Hoi-PangHim's Grandfather Kwok Siu KitInterviewee for the Space Museum Vacancy Patrick DunnManager of the accountant firm Himmy WongInterviewee for the Space Museum Vacancy Yeung Wai-LunInterviewee for the Space Museum Vacancy Michelle LoHost of the TV show Chip TsaoGuest speaker of the TV show Cheung Kam-HaWoman on the queue for tamagochi Patrick Leung Pak-KinDirector Amy Chin Siu-WaiWriter / Producer Chan Miu-LingArt Direction Leung Ming-kaiDirector Of Photography Derek Hui Wang-YuSupervising Editor Tsui Chin-HungOriginal Music Composer 
