Stephan JamesHalan Kai Nielsen / Executive Producer Lena HeadeyAster Calyx / Executive Producer Wade Bogert O'BrienBart (voice) Bo MartynowskaLilya Gashade Stephen RootSolomon Smythe Sydney Ozerov-MeyerGrisha Hannah Melissa ScottTeenage Aster Calyx David TompaDosto Bix Chennault Zarrin Darnell-MartinNybecca Carolina BartczakDr. Ree Avalon Ben CainKadir Soon Nielsen Paulino NunesTimur 'Battle' Ondi Marnie McPhailDr. Rojan Kaneddy Dani KlupschMadanchi 'Bigface' Tritujuma (uncredited) Christine AzizISA Secretary Lewin WebbDirector / Supervising Producer Daniel PercivalDirector / Executive Producer Angel Kristi WilliamsDirector Zak PennWriter / Executive Producer Ira Steven BehrWriter / Executive Producer Joy BlakeWriter / Executive Producer Glen MazzaraWriter / Executive Producer Dagny Atencio LooperWriter Sarah NolenWriter / Supervising Producer James MiddletonExecutive Producer Nick NantellExecutive Producer Katie O'Connell MarshExecutive Producer David FortierExecutive Producer Ivan SchneebergExecutive Producer Elisa EllisExecutive Producer Liz VarnerExecutive Producer Tina ThorExecutive Producer Stephan JamesHalan Kai Nielsen / Executive Producer Lena HeadeyAster Calyx / Executive Producer Evan WebberProduction Design Todd FjelstedProduction Design Joyce SchureCostume Design Katy SiracusaCostume Design Ramin DjawadiMusic Producer William MarriottOriginal Music Composer Ben PollackOriginal Casting Seth YanklewitzOriginal Casting