Gorbag

Gorbag was an Uruk-hai, the captain of an Orc troop of Minas Morgul, who was slain by Shagrat in the Tower of Cirith Ungol in a dispute during the War of the Ring.

In Peter Jackson's film version, Gorbag is an Orc, not an Uruk, and he is killed by Sam during Frodo's rescue.