Aris Boch is one of the greatest bounty hunters in the whole galaxy, and according to him, his promises are worhh gold on over two thousand worlds.

He is not human as could be thought. This can be seen to his blood, which is green (last picture is a wound in his back). Moreover, the members of his race cannot be used as hosts for the Goa'uld, the symbiote being always rejected. As a consequence, most of them have been killed, and the remnants have been made addicted to the Rosh'na over several generations. Thus, Aris captures his preys in exchange of this drug.

When he met SG-1, he was hunting a Tok'ra whose true identity had been discovered by Sokar.

Aris says that he has become one of the bests because he was able to stay alive. The Goa'uld are pleased by his services because they know they can rely on him. That is, until he met SG-1 and betrayed Sokar. He likes to pretend his wife is dead and his son enslaved in a Naqahdah mine, though he has neither and never had.

Besides his immunity to Zat'n'ktel, Aris Boch owns some pretty "toys" to help him in his job.