American actor who played the Klingon captain Nu'Daq in The Next Generation's The Chase, the mirror-universe Klingon Telok in Deep Space Nine and the Xindi Gralik Durr in Enterprise.
John Cothran Jr. is an American actor with a long career in theatre, film and television.
In The Chase he plays Nu'Daq, commander of the Maht-H'a, who joins the uneasy alliance hunting the ancient genetic code. He tests Data with a head-butt and an arm-wrestling match, and tries to bribe him.
Cothran next appeared in the Deep Space Nine episode Crossover as Telok, a Klingon officer serving the mirror universe's Alliance on Terok Nor. In the Enterprise episode The Shipment he is Gralik Durr, the Xindi-Arboreal who runs a kemocite plant and, once Archer convinces him of the weapon's purpose, quietly sabotages a consignment.