Rennie was an airman in the United States Air Force, who was stationed as one of Icarus Base's military personnel.


In 2009, the base was under attack from what they suspected were Lucian Alliance forces. What he first thought would be Earth on the other side of the wormhole turned out to be the nine-chevron address, which led them to Destiny.

He was sent to Gravel pit planet with Dr. Dale Volker, Lt. Vanessa James and Dr. Robert Caine, where they discovered unidentified alien spacecraft. (SGU: "Justice")

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