Michael Burnham, Sr., was the husband of Dr. Gabrielle Burnham and biological father of Commander Michael Burnham. His daughter later followed in his footsteps as a xenoanthropologist, though it was only later in life that she learned he had helped her mother build the Red Angel suit for Section 31. He was killed when the Klingons attacked, attempting to destroy the suit.
Dr. Gabrielle Burnham is the wife of Michael Burnham, Sr. and biological mother to Commander Michael Burnham. An extremely intelligent and capable woman, she is an astrophysicist and engineer, and was the one to originally build the Red Angel suit with her husband for Section 31, to give the Federation access to time travel. She was presumed dead after the Klingons attacked, attempting to destroy the suit -- but was actually able to get away by using the suit, to a point 950 years in the future, to which she became indelibly linked to.
Located within Section 31's Forward Operating Base in its data center, Control was Starfleet's threat-assessment system. Relying on artificial intelligence from the future that Starfleet had harnessed, they relied on it for recommendations regarding all critical strategic decisions. Only a Section 31 Admiral could interface with it directly. Admiral Patar, a logic extremist, was lobbying for Starfleet to turn all decisions over to Control before she was killed by it.
In an attempt to achieve consciousness, Control infiltrated Airiam's enhancements, forcing her to begin downloading the data Discovery had obtained from the sphere before it died, but when she realized what was happening, she convinced the crew to shoot her from an airlock so she couldn't be a danger to them.
Control then possessed Leland, the leader of Section 31, in an attempt to continue accessing the sphere data, which resulted in a battle between all of Section 31's ships and drones, the Discovery, and the Enterprise.
May Theresa Ahearn was a childhood friend of Sylvia Tilly's while she was a junior high school student at Musk Junior High. She even gave Tilly the nickname "Stilly" because she could never stay still.
After Tilly was shocked by a dark matter asteroid she was examining, she began hallucinating that May was an engineering ensign aboard the U.S.S. Discovery. Those hallucinations turned out to be the result of a spore entity that piggybacked on Tilly, attempting to communicate with her by manifesting someone from her memory, when in fact May had died on June 9, 2252 at the age of sixteen.
Once the entity was expelled from Tilly, it turned out to be a blob-like JahSepp, a species that lives inside the mycelial network.
Federation medical frigate found crash-landed on an asteroid. The U.S.S. Hiawatha was downed during the Klingon War while en route to Starbase 36. The ship was on the asteroid for ten months and eleven days before being found by the U.S.S. Discovery.
Commander Nhan was an operations officer serving aboard the U.S.S. Enterprise in 2257 when she transferred to the U.S.S. Discovery to join Captain Pike and its crew. Once on the Discovery, she became their new Chief of Security. Because she was Barzan, she required a special breathing apparatus to survive M-class atmospheres.
Mike McMahan is best known for his work on the Emmy Award-winning Rick and Morty, which he currently serves as executive producer and showrunner, and as the author of "Star Trek: The Next Generation -- Warped: An Engaging Guide to the Never-Aired 8th Season," an official parody book published in 2015. Among his upcoming projects is Solar Opposites, an animated show set to debut in 2020. McMahan lives in Los Angeles with his wife, two sons and the family's cat, Riker