Heru-ur (Stargate)

Heru-ur first appeared in the second season episode "Thor's Chariot" in which he attacked the world Cimmeria. One year earlier SG-1 visited the planet during which they were forced to destroy Thor's Hammer, an Asgard weapon which protected the planet. Because of this the planet was easily conquered by the Goa'uld, who started to build pyramids as landing places for Heru-ur's Ha'tak ships. Although SG-1 helped some rebels from the planet to fight against Heru-ur's forces, they were no match for them and were captured by the Jaffa. They managed to contact the Asgard Thor who appeared with his mothership and destroyed the Goa'uld forces and buildings. Heru-ur barely escaped through the Stargate.

Heru-ur again appeared in the episode "Secrets" where he planned to steal Apophis' and Amonet's child from Abydos. He went there with his Jaffa to take the child but Teal'c killed one of his guards, took his clothes and convinced Amonet that Heru-ur stole her child, while in truth the child was taken by SG-1. Teal'c later returns with Daniel Jackson to the gate where they and their teammates fight against Heru-ur and his guards. Although Heru-ur possessed a personal shield he again is forced to flee by the Ring Transporter on his ship above.

Heru-ur at last appeared in a season four episode entitled "The Serpent's Venom", where he planned to make an alliance with Apophis, despite them being former enemies. Because neither of them trusted the other they met in a minefield in the Tobin system, and if anyone would attack, the mines would react to them. However the Tok'ra heard about this meeting, and with the help of SG-1, planned on making Apophis believe that Heru-ur had attacked him during the meeting by reprogramming a mine. They were successful but received a surprise of their own when Apophis unveiled a cloaked fleet and he easily destroyed Heru-ur's ship. Thus Heru-ur finally met his end. Afterwards Apophis acquired Heru-ur's forces, becoming stronger than ever.

Heru-ur is mentioned in the season four episode "Double Jeopardy" as occupying the planet Juna that SG-1 once freed his control. However this led to the world being taken by Cronus.