This article is about the O'Neil with one "L". For the O'Neill's with two "L's", see Jack O'Neill.
"There's another Colonel O'Neil with only one L, he has no sense of humor at all."
Jack O'Neill[src]

O'Neil was a Colonel, possibly in the United States Air Force, who, according to Colonel Jack O'Neill, had no sense of humor. (SG1: "Secrets")

Behind the scenesEdit

It's commonly felt that the "O'Neil" with one "L" is a reference to the performance by Kurt Russell in the original Stargate.

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