G. Austin was a Human male who served as a Military Assault Command Operations soldier during the mid-22nd century. In 2153, Austin was assigned to Enterprise NX-01 for it's Delphic Expanse mission.

Austin was part of Lieutenant Malcolm Reed's security detail sent to repel a Xindi-Reptilian boarding party who was attempting to secure the capture of Rajiin. During the fight aboard Enterprise, Austin was hit by a "glob" fired from a Xindi-Insectoid soldier's weapon. (ENT: "Rajiin")

Austin was played by stunt actor Kevin Derr, who portrayed Corporal Kelly in the following seasons.
In the final draft script of "Rajiin", Austin was established as having been knocked unconscious in the episode, rather than killed.
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