Uglúk

He was one of Saruman's Uruk-hai, and the leader of the band of Orcs that attacked the Fellowship of the Ring and captured Merry and Pippin. He and his band were slain by Rohirrim commanded by Éomer.

In Peter Jackson's movie adaptation of The Two Towers, Uglúk is played by Nathaniel Lees.

According to The Fellowship of the Ring movie, the initial leader of the orc-band was Lurtz, who was slain by Aragorn at Amon Hen.