Guest Stars Bahia Watson as May Ahearn Sheila McCarthy as All-Mother Andrew Moodie as Jacob 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 Hannah Cheesman as Lieutenant Commander Airiam Raven Dauda as Dr. Tracy Pollard Noah Davis voices Lieutenant (2053) Claire Qute as Teen May Hologram Kiara Alondra Groulx as Rose