|Grishnákh is played by Stephen Ure in The Two Towers|
Grishnákh was an Orc of Barad-dûr, and the captain of the band of Mordor-orcs which slew Boromir and captured Merry and Pippin. While Uglúk had orders to deliver the Hobbits to Saruman unharmed, Grishnákh planned to take them to the east bank of the Great River, where a Nazgûl (atop a Fell Beast) would take them to Lugbúrz in Barad-dûr. When Uglúk rejected this plan, Grishnákh slipped away as the Orcs and Uruk-hai argued; he returned with a group of Orcs like him, each with drooping arms and shields painted with the red eye.
Grishnákh knew of the One Ring, having been present during the torture of Gollum; suspecting that one of the captive Hobbits possessed it, he stole them away from their guards, using the attack by the Rohirrim as a distraction to search them for the Ring. Pippin, trying to negotiate, offered information about the One Ring in return for his and Merry’s release, which only infuriated Grishnákh more. Drawing his sword to kill them, he was slain by a patrolling Rohirrim who had heard them.