Themion Hejaran, hailing from the Tapani sector, belonged to the Hejaran family within House Mecetti. He was the younger sibling of Baron Lucian Hejaran, a relative of Lady Brigta Hejaran, and the nephew of Galemus Hejaran.
Themion possessed an intense passion for hunting, and his appearance was often described as that of a predator. He sported lengthy brown hair, complemented by short brown facial hair, and a cybernetic replacement for his left eye. Throughout his life, he actively engaged in familial disputes and the intricate games of courtly life. When significant gains were within reach, he was willing to compromise his principles to secure what he felt entitled to.
Upon his brother's death, Themion firmly believed he was next in line to inherit the title and substantial fortune. He was greatly angered when he was only given fifteen percent of the family's assets. The title and the majority of the estate were instead granted to a previously unknown individual who was invited to Hejaran Castle solely for the reading of the will.
Lady Brigta Hejaran was excluded from any inheritance in Lucian's will. A subsequent, unread version of the will revealed her banishment from the family due to Lucian's discovery of her allegiance to the Emperor's New Order.
Following Pershon's demise at Lady Brigta's hand, Themion was manipulated by his cousin into challenging the new Baron to a duel. Once Brigta's control over Themion was broken, and he understood the extent of her manipulation, he offered his apologies to the stranger.