The single greatest person in all of starfleet history.
Miles Edward O'Brien.
If it weren't for him, several ships and a few stations would have been vaporized decades ago.
The man.
The myth.
The wrongfully imprisoned, tortured, and brainfucked legend.
Man, the shows did him dirty...
I still think it's wild how he died and we just have a different O'Brien for the rest of the series.
since he didn't just disappear, the "future" him has to have been from a different universe and is probably presumed dead in that one