One of the biggest turns of Star Trek: Discovery season 1 surprised Sonequa Martin-Green, who wasn’t aware it would happen. As Michael Burnham, Martin-Green was the unique series lead of Star Trek: Discovery, who was a Specialist and former mutineer in season 1 before ultimately becoming Captain of the USS Discovery. But while Sonequa starred as Sasha in The Walking Dead, the two more famous actors who helped establish Star Trek: Discovery in season 1 were Jason Isaacs, who played Captain Gabriel Lorca, and Michelle Yeoh, who played Captain Philippa Georgiou and her Mirror Universe counterpart, Emperor Georgiou.
https://screenrant.com/star-trek-discovery-season-1-what-surprised-sonequa-martin-green/