Arthur Dallas

Dallas, the captain of the spaceship Nostromo, has a rugged, seasoned look befitting his role as a veteran spacefaring leader. He has medium-length brown hair, often slightly messy due to the long journey in space. He sports a mustache that enhances his rugged appearance, giving him a weathered and experienced look. Dallas typically wears practical, utilitarian clothing, such as the standard-issue Nostromo jumpsuit, which is loose-fitting and functional for the harsh, industrial environment of the ship. His overall appearance reflects the no-nonsense, blue-collar aesthetic of the crew.

Arthur Koblenz Dallas was the captain and owner of the cargo vessel USCSS Tremolino and, later, captain of the commercial towing vehicle USCSS Nostromo. He was in command of Nostromo during its fateful voyage in 2122 when it encountered a Xenomorph on Acheron (LV-426), an incident that eventually led to the destruction of the ship and the loss of all but one of its human crew.

Dallas was taken by the Alien while attempting to flush the creature from the ship's ventilation shafts and into its main airlock so that it could be expelled into space; he was later found by Ellen Ripley, cocooned in the Nostromo's hold.

Dallas was generally a laid-back captain, although Brett and Parker's continued insistence that they receive higher pay seemed to annoy him. He was also averse to making decisions, a flaw he himself acknowledged and cited as the reason he was merely in charge of a commercial tug as opposed to a more impressive position aboard a space liner. When forced into a decision, Dallas seemed prone to making rushed, unwise choices under pressure, most glaringly when he allowed Kane and the Facehugger back on board Nostromo in violation of quarantine protocols — a move that ultimately doomed the crew. Similarly, he opted to leave LV-426 before Nostromo was fully repaired, leaving the crew without vital surveillance systems that they could have used to track the Alien.

Despite this, Dallas showed bravery and responsible leadership as the crisis worsened, refusing to let anyone else take his place in the vents to try and flush the Alien into the airlock despite his own fear.