We've seen before when characters in one TV dimension have doppelgangers in other dimensions who have some slight difference with their counterparts, and that Time may flow differently in those dimensions.
Which all could be a way to splain why the head of the CMC security company in 'The State Within', James McIntyre, looked remarkably like Major Raymond MacIntyre in two episodes of 'Earth: Final Conflict' ("Pandora's Box" & "Live Free Or Die").
I suppose it could be that they were in the same dimension, and somehow related - the old "identical cousins" routine. But James would be somewhat older than Raymond, as 'Earth: Final Conflict' is about a quarter century still into the Future. (The show's main character made a name for himself in the War of 2001, which could be a way to describe the lead-up to the invasion of Afghanistan against the Taliban. He may have been only in his early 20s at the time.)
Being set in the future, I don't have to worry just yet as to whether or not Earth Prime-Time, the main Toobworld, will be able to support 'Earth: Final Conflict as taking place there....