Two. One, a "mutineer" who has been stripped of rank and is forced into working on this secret and probably unethical project. The other, her hyperactive cadet roommate/friend.How many female regulars are left standing on Discovery right now, BTW?
The females in Discovery's supporting cast include a starship captain killed at the end of the pilot, an Admiral who it turns out had an affair with Captain Lorca, who subsequently sacrificed her by more or less handing her over to be captured by the Klingons, a Klingon commander who is constantly switching her allegiances to various men, and three bridge officers who do nothing other than say "Aye Sir" stare at their computer screens or nod and tilt their heads.