- Name
- Jack O'Neill
- Real name
- Jonathan Jack O'Neill
- Gender
- Male
- Birthday
- 20 October 1952
- Died
- Franchise
- Stargate (Franchise)
- Aliases
Jack O'Neill
General Johnathon J. "Jack" O'Neill was the team leader of SG-1, Commander of Stargate Command and is currently the Commander of Home-world Security.
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The then Colonel Johnathon J. "Jack" O'Neill was the team leader of SG-1 until season 8 of the series Stargate SG-1, where he took control of Stargate command, being promoted to the rank of Brigadier General . He soon moved to take up control of the department of Home-world security based at the Pentagon following a promotion to Major General and later Lieutenant General. He was succeeded in his role as Commander of Stargate Command by Major General Hank Landry. During his time in SG-1, the then Colonel O'Neill played a key part in stopping the advances of the hostile alien race known as the Goa'uld, and also the hostile robot race known as the Replicators (Concept).