Guest Stars Jimmi Simpson as James Walton Jimmi Simpson as Lt. Commander James Walton Jesse Plemons as Captain Robert Daly Jesse Plemons as Robert Daly Cristin Milioti as Nanette Cole Cristin Milioti as Lieutenant Nanette Cole Osy Ikhile as Nate Packer Osy Ikhile as Helmsman Nate Packer Aaron Paul voices Gamer691 Michaela Coel as Shania Lowry Michaela Coel as Lt. Shania Lowry Billy Magnussen as Valdack Hammed Animashaun as Pizza Guy Tom Mulheron as Tommy Milanka Brooks as Elena Tulaska Milanka Brooks as Lt. Elena Tulaska Paul G. Raymond as Kabir Dudani Paul G. Raymond as Lt. Kabir Dudani Uncredited Kirsten Dunst as Callister Employee