Special Guest Stars Michelle Yeoh as Emperor Philippa Georgiou Augustus Iaponius Centarius Guest Stars Blu del Barrio as Adira Annabelle Wallis voices Zora Ian Alexander as Gray Tal Andreas Apergis as Trill Guardian Xi Kenneth Welsh as Admiral Senna Tal Karen Robinson as Trill Leader Pav Andrew Shaver as Trill Commissioner Vos Co Starring Emily Coutts as Lt. Cmdr. Keyla Detmer Patrick Kwok-Choon as Lt. Cmdr. Gen Rhys Oyin Oladejo as Lt. Cmdr. Joann Owosekun Ronnie Rowe as Lt. Cmdr. Ronald Altman Bryce Julianne Grossman voices Discovery Computer David Benjamin Tomlinson as Lt. J.G. Linus Sara Mitich as Lt. Cmdr. Nilsson Raven Dauda as Dr. Tracy Pollard Elana Dunkelman as Disco Engineer #1 Christine L. Nguyen as Disco Engineer #2