Seth Blackett was a Human born on Hightan within the Arkanis sector in 7 ABY, and grew up in the lower class society of Hightan. In 24 ABY, Seth helped in leading an open rebellion against the dictatorship which had grown and taken over his homeworld, and later be taken in by the Dark Jedi Durasteel and serve as his mercenary later on. In Triumphant Shadows, an Alternate timeline C, Seth became Durasteel's dark apprentice.