Guest Stars Blu del Barrio as Adira Oded Fehr as Admiral Charles Vance Annabelle Wallis voices Zora Tig Notaro as Commander Jett Reno Ian Alexander as Gray Tal David Cronenberg as Dr. Kovich Janet Kidder as Osyraa Jake Weber as Zareh Bill Irwin as Su'Kal Adil Hussain as Aditya Sahil Kenneth Mitchell as Invigilator Aurellio 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 Raven Dauda as Dr. Tracy Pollard Tara Rosling as President T'Rina Vanessa Jackson as Lieutenant Audrey Willa Avaah Blackwell as Lieutenant Ina Karen Robinson as Trill Leader Pav Hannah Spear as Dr. Issa Jinny Jessica Jacinto as The Monster Roy Samuelson voices Emerald Chain Computer Dorren Lee as Lieutenant Teemo David Benjamin Tomlinson as Young Su'Kal Farhang Ghajar as Bridge Regulator Alain Chanoine as Regulator Escort #1