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