Originally a good man, Tex Hex was corrupted by the promise of wealth that the Kerium rush promised, driving away the woman he loved. Stampede himself used this corruption and used it to transform a mortally wounded Tex into his enforcer and gave Tex his magic powers, including the abilities to shoot energy bolts, destroy mountains, transformations and summoning creatures called fire snakes.
Tex Hex displays a cantankerous, ornery attitude and a penchant for sadism. He won't hesitate to abuse a henchman for failure or if they just annoy him.He's also shown to make and change allegiances at the drop of a hat in order to serve his own selfish best interests.
The capacity for good still resides in him, as he allows a shipment of specially treated Kerium to be transported offworld to help treat children with visual disabilities. On another occasion Tex Hex shows mercy by not attacking Fort Kerium on Christmas day while Bravestarr was away on personal buisness, due to his ex-love being present there during the holiday. Tex regretfully wished her a Merry Christmas from a distance, choosing without regret to subject himself to Stampede's wrath for his deliberate failure. Bravestarr speculates that there might yet be hope for Tex Hex to redeem himself.
Earlier on Christmas day, Shamen showed Tex his gauranteed future if he continued in his evil ways, that he would be dead in just a few years. Tex was visibly terrified at the prospect.
Tex Hex was originally envisioned as a Henchman of Prime Evil from another Filmation series: Filmation's Ghostbusters. His outfit is similar to the "Retro Futuristic" look all of Prime Evil's flunkies. But the design was never used in the show, being retained for use as a main heavy for Bravestarr.