Lieutenant Commander Rainsford aboard the starship Discovery.
Captain Georgiou, the Starfleet Captain aboard the Starship Shenzhou.
Lt. Saru, a Starfleet Science Officer and a new alien species in the Star Trek universe.
Lt. Stamets, an astromycologist, fungus expert, and a (gay) Starfleet Science Officer aboard the Starship Discovery.
T’Kuvma, a leader seeking to unite the Klingon houses.
Kol, a Klingon Commanding Officer and protege of T’Kuvma.
L’Rell, the Battle Deck Commander of a Klingon ship.