Guest Stars Wilson Cruz as Dr. Hugh Culber Jayne Brook as Admiral Katrina Cornwell James Frain as Ambassador Sarek Mia Kirshner as Amanda Grayson Kenneth Mitchell as Klingon Commanding Officer Kol Co Starring Emily Coutts as Lt. Cmdr. Keyla Detmer Oyin Oladejo as Lt. Cmdr. Joann Owosekun Julianne Grossman voices Discovery Computer Sara Mitich as Lieutenant Commander Airiam Conrad Coates as Admiral Terral Damon Runyan as Ujilli Clare McConnell as Dennas Jonathan Whittaker as Vulcan Director Luke Humphrey as Adjunct V'Latak