Guest Stars Jarod Joseph as Nathan Miller Tasya Teles as Echo Chelsey Reist as Harper McIntyre Erica Cerra as Alie Jonathan Whitesell as Bryan Chai Hansen as Ilian Co Starring Ben Sullivan as Riley Jennifer Cheon as Dakiva Darcy Laurie as Tybe Eliza Faria as Grounder Girl Jana Mitsoula as Willa Jason Beaudoin as Rafel Kyle Toy as Ilian's Brother Laura Picado as Grounder Woman in Hood