One of three nicknamed prisoners transported alongside Michael Burnham in 2256, who takes part in the mess hall assault on her aboard the USS Discovery and is beaten back by her Vulcan fighting skills.
Cold is a prisoner seen in the Discovery episode Context Is for Kings. He is being moved between penal facilities on the same shuttle as Michael Burnham when a swarm of energy-eating organisms cripples the craft and its pilot is lost, leaving the shackled convicts helpless until the USS Discovery tractors them aboard.
In Discovery's mess hall Cold, together with Stone and Psycho, corners Burnham, whom all three despise for her mutiny and the war that followed. Burnham defends herself with Suus Mahna and floors her attackers before Commander Ellen Landry intervenes and has the prisoners removed.
The part was played by Elias Toufexis, who returned to the series in its fifth season as the Breen fugitive L'ak.