Guest Stars Danny Hoch as Subject 5 Kathleen Choe as Subject 3 Allyce Beasley as Subject 11 James Monroe Iglehart as Orderly Carl Stephen Hill as Subject 7 Julia Garner as Ellie Landsberg Co Starring Dai Ishiguro as Head Control Tech Sejal Shah as Medical Tech Mariko Kai as Trial Administrator Chris Ghaffari as Julio