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 Karen Robinson as Trill Leader Pav Kenneth Welsh as Admiral Senna Tal Andrew Shaver as Trill Commissioner Vos Co Starring Emily Coutts as Lt. Cmdr. Keyla Detmer Oyin Oladejo as Lt. Cmdr. Joann Owosekun Patrick Kwok-Choon as Lt. Cmdr. Gen Rhys Ronnie Rowe as Lt. Cmdr. Ronald Altman Bryce Julianne Grossman voices Discovery Computer Sara Mitich as Lt. Cmdr. Nilsson David Benjamin Tomlinson as Lt. J.G. Linus Raven Dauda as Dr. Tracy Pollard Elana Dunkelman as Disco Engineer #1 Christine L. Nguyen as Disco Engineer #2