Gideon Blacktalon, founder of Talon Company before the bombs.
When the apocalypse happened, he froze himself in cryogenic stasis, programming his pod to release him once all ambient radiation had cleared. He underestimated how long that would take.
Once out, after Gardens of Equestria had been activated, he learned what Talon Company had devolved into without him. Infuriated, he immediately set about rebuilding the mercenary organization from the ground up.
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Image traced: https://derpibooru.org/images/2898428