Aethyr is a recurring villainess in the WB TV series Smallville. She along with fellow Kryptonian Nam-Ek were loyal to General Zod and appeared as the main antagonist in the Fifth Season premiere "Arrival".
She was portrayed by Alana de la Garza.
Aethyr and Nam-Ek were the Disciples of Zod as they were his closet allies during the final years on Krypton. After Zod was sentenced to the Phantom Zone for his war crimes, the disciples escaped Krypton's destruction with the Brain InterActive Construct in the Black Ship and made its way towards Earth. It laid dormant in space until it reached its destination.
The Black Ship crash-landed to Earth after one of the Stones of Power was stained with blood belonging to Genevieve Teague. The Kryptonian vessel was hidden in a meteor shower that struck Smallville and landed in a field witnessed by Lana Lang.
Exiting the ship, the disciples startled Lana with their appearance, and they attacked police officers who arrived at the scene. Aethyr and Nam-Ek used their heat vision to dispatch the officers. They killed mostly all of them but left a few survivors including Deputy Harris and Greg Flynn. She and Nam-Ek super speed to the Katwatche Caves where they encountered Lex Luthor and asked if he was Kal-El. After grabbing him by the neck and saw Lex bleed, Aethyr stated he was not Kryptonian and quickly left the caves. The pair traversed Smallville in search of Kal-El, leaving a trail of destruction and brutality in their wake. The disciples then went to the Smallville hospital looking for Kal-El, Lois confronts them, and they choke her and throw Jonathan across a room. Lana stumbled in and as they were about to kill Lois, tells them she knew where Kal-El was.