San
San was an individual from the mirror universe.

In 3189,  began having flashbacks to her earlier life in the Terran Empire, including standing over San's bloody body. ()

Before being sent back in time by the Guardian of Forever, Georgiou told Michael Burnham that "I wish I'd learned all this before now. I had a chance, once, long ago. He was called San. I wish I told you about him." Burnham encouraged Georgiou to tell the people that she was about to meet instead. ()

Individuals
Mirror universe inhabitants