Oordar clan was a family that came to power in Heran and for several generations ruled many regions, later founding Tref.

Oordar clan is especially famous for being part of a causal loop, initiated by the superhero warrior Farnole.

• Kren Oordar, founder of the clan
• Maksag Oordar, his close friend, known to the outside world as his brother
• Maye Seaoor, Maksag's first wife
• Kren the Younger, Kren's son
• Gorona Oordar, Nilma's wife
• Rodare Oordar, who is also Kren Oordar
• Nilma Oordar, Maksag's son
• Pherro Oordar, Kren's second son
• Hee Oordar, founder of Tref
• Iar Oordar, founder of Tref

Oordars came to power in 1513 SR, when Kren Oordar conquered Tonaran, which at the time was so powerful so as to be considered invincible. This made Kren a legend overnight. This feat, as well as Kren's knowledge of the future, allowed Maksag Oordar to expand Oordar's influence to the south and then to the east, culminating in the subjugation of Mantar.

The death of Kren the Younger, the vanishing of Rodare and the exodus of Hee, Iar and Pherro from Tarnaria in the end of the 16th CSR significantly undercut Oordar clan's influence, and one by one the Oordars in the east lost power, first in Mantar, then in Maird, Tonaran and later Qep. Willing to restore the family's name, Hee built the city of Oordar and made it the capital of Tref, but died just several years later, ending the reign of Oordars.