Star Trek: 10 Characters That Faked Their Way Into Starfleet
8. Oh, The Zhat Vash
The problem with prophecy, especially the doomsday ones, is that the interpretation always matches the interpreter. And if the prophecy happens to be history, then that only has to repeat itself if you let it. Oh and co. could have learnt something from Captain Janeway when she said, "Fate, Tuvok? I won't accept that." Not all synths were diabolically deadly, and Soji Asha (the synthetic twin or 'Seb-Cheneb') wasn't the prognosticated destroyer. 'Ganmadan,' or the end of the world as they knew it, would simply have to wait.
It was the neuronal misfirings of prophecy, or rather the misinterpretations of ancient synth history not meant for organic minds — the 'Admonition' — that led Zhat Vash operative Oh to fake her way into Starfleet. As Raffi told it in Broken Pieces, Oh, in fact half-Romulan, half-Vulcan, had been sent as a 'mole' to 'burrow' into Starfleet at the time Doctor Noonien Soong began developing his famous androids. Oh then rose through the ranks to become Commodore and head of Starfleet Security.
Set on setting anything and everything positronic on fire, Oh then masterminded the attack on Mars which led to the Federation's ban on synthetic lifeforms. That also had the rather unfortunate side-effect of ending the Romulan evacuation efforts, leaving millions out of options in the path of a supernova. I suppose, on the galactic Ragnarök scale of things, Oh and the Zhat Vash could live with that.