Guest Stars Ryan McParland as Adun Casper Knopf as Young John Duncan Pow as John's Father Sarah Ridgeway as John's Mother Ian Pirie as Professor Sky Yang as Ruben Felipe Gabriel Mariano as Malchin Jung Hwan as Jin Ha Hans Peterson as Ops Tech Pereira Dávid Csányi as Colonel Stacker Johnny K. Palmer as Control Tech Ladi Karen Gagnon as Flight Tech Juric Miklós Béres as Sentry Mirjam Novak as Flight Tech Tesic Nneka Okoye as Djanka Hayley Canham as Cara Shaun Aylward as Esso Zachary Hing as Neru Olivia Liu as Faaz Chan Woo Lim as Flight Tech Doan