S. Barnes[1] was one of the mechanics aboard the USCSS Prometheus during the ship's voyage to LV-223.


When Janek noticed Fifield's monitor was outside the Prometheus' hangar door, a mechanic ordered Barnes to open the door. Barnes complied and the other mechanic went outside to inspect Fifield (who was infected by the black liquid found inside the Engineer Temple). The mechanic kicked Fifield, but nothing happened. The mechanic told Wallace to take a look a Fifield, but was killed when Fifield smashed his helmet. Barnes was killed in the ensuing chaos.



  1. 1.0 1.1 S. D. Perry. Alien: The Weyland-Yutani Report, p. 47 (2014), Insight Editions.
  2. Jon Spaihts, Damon Lindelof (writers), Ridley Scott (director). Prometheus (2012), 20th Century Fox [DVD].
  3. S. D. Perry. Alien: The Weyland-Yutani Report, p. 46 (2014), Insight Editions.