|Planet of origin||Earth|
|Rank||Airman First Class|
|Allegiance||US Air Force|
|Out of Stargate universe information|
|Portrayed by||Jack Moore|
Reilly is part of the recon team for the new found planet which coordinates were discovered by Dr. Daniel Jackson. He passes through the Stargate's wormhole and starts doing recon under Colonel O'Neill's orders.
On Abydos, Reilly is part of the base camp team. When a sandstorm is raising on the planet, Reilly ask Freeman, Porro and Ferretti to fold back to the pyramid. Reilly suggest to turn the gate on themselves. Ferretti replies back that they could materialize in the vacuum of outer space.
Later, trying to defend themselves against an unknown enemy, Reilly is knocked out and dragged away. His left ear is bleading.
- Reilly's rank is visible on his fatigues's sleeves just before he passes through the Stargate.
- Reilly is credited as "Lieutenant" in the movie's ending credits (the same for all O'Neill's team members), yet the visible rank on his fatigues is Airman First Class.