Guest Stars Adina Porter as Indra Tasya Teles as Echo Alessandro Juliani as Jacapo Sinclair Zach McGowan as Roan Alycia Debnam-Carey as Lexa Michael Beach as Charles Pike Toby Levins as Carl Emerson Neil Sandilands as Titus Brenda Strong as Queen Nia Leah Gibson as Gina Martin Co Starring JoJo Ahenkorah as Costa Cory Grüter-Andrew as Aden Julia Dominczak as Singing Grounder Carmel Amit as Female Street Vendor Link Baker as Ice Nation Ambassador Lee Tichon as Pike's Guard Noah Dalton Danby as Ivon