The mirror universe counterpart of Voq, an albino Klingon known as the Fire Wolf who leads a coalition of species in rebellion against the Terran Empire from a camp on Harlak.
The mirror Voq appears in The Wolf Inside, played by Shazad Latif under the same pseudonym used for the prime character. Burnham is ordered to wipe out his base and instead beams down with Ash Tyler to learn how a Klingon came to lead Vulcans, Andorians and Tellarites as equals.
Voq explains that the fight against the Terrans has taught his people to value allies without giving up their honour. The meeting goes badly wrong when the sight of him awakens the buried Klingon personality inside Tyler, who attacks him in a rage and is beaten down.
Voq nevertheless accepts Burnham's warning and evacuates before the Emperor destroys the camp from orbit.