Guest Stars Jarod Joseph as Nathan Miller Sachin Sahel as Eric Jackson Adina Porter as Indra Tasya Teles as Echo Luisa d'Oliveira as Emori Chelsey Reist as Harper McIntyre Jessica Harmon as Niylah Tati Gabrielle as Gaia Erica Cerra as Becca Franko Chai Hansen as Ilian Co Starring JoJo Ahenkorah as Costa Ben Sullivan as Riley Alyson Bath as Bree James Michalopolous as Fio Cole Vigue as Geoff Hardy Julia Dominczak as Singing Grounder Alex Pangburn as Hayes Ryan W. MacDonald as Flame Keeper Scout Natasha Denis as Podakru Warrior Andre Tricoteux as War Chief #3 Don Lew as War Chief #1 Jenn Forgie as Rhanda Matt Kennedy as Jacov Melinda Michael as Ankara Uncredited Eli Goree as Wells Jaha