Charlie Cutter first appears in Uncharted 3: Drake's Deception. He is a friend of Nate's and is also shown to know Elena to some extent when she inquires about his well-being. It is apparent that he suffers from severe claustrophobia, requiring a lot of prompting just to squeeze through tight spaces. He is first introduced as one of Marlowe's henchmen, although it is soon apparent that he was an inside man. He helps Nate, Chloe and Sully in the first part of the game with finding the clues to the location of Ubar, the Atlantis of the Sands. He gets injured when jumping off a tower in Syria and tells Nate to go on and stop Marlowe out of revenge. Despite looking like a blunt, common thug, he appears to be well educated, quoting John Steinbeck's Of Mice and Men and correcting Sully's mistake when quoting Macbeth. He is voiced by Graham McTavish.
Source: Wikipedia, "List of Uncharted characters", available under the CC-BY-SA License.