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