Stewart Aarnott Grandpa
Doctor
Brandon Michael Arrington SuperJack
Levi Dombokah Jack
(Wed, Sat, Sun Matinees)
Lucien Duncan-Reid Jack
(Tue – Sat Evenings)
Tracey Ferencz Grandma
Alexis Gordon Ma
Shannon Taylor Police
Interviewer
Popcorn Server
Ashley Wright Old Nick
Understudies: Isaac Chan (Young Jack), Starr Domingue (Ma), Thom MARRIOTT (Old Nick/Grandpa), Christopher Parker (SuperJack), Alix Sideris (Grandma/Interviewer/Police/Popcorn Server)