Guest Stars Jarod Joseph as Nathan Miller Sachin Sahel as Eric Jackson Adina Porter as Indra Luisa d'Oliveira as Emori Alycia Debnam-Carey as Lexa Erica Cerra as Alie Michael Beach as Charles Pike Donna Yamamoto as Hannah Green Shaine Jones as Shawn Gillmer Mik Byskov as Otan Co Starring Georgia Hacche as Denae Eric Mazimpaka as Second Polis Sentry Patrick Sparling as Polis Sentry Rick Dobran as Merchant Craig Blair as Lexa's Sentry Warren Abbott as Ark Jail Guard Tomas Mauro as Ark Tower Guard