Deathbird is a Shi'ar and the sister to Lilandra and D'Ken. She serves as the right-hand woman to D'Ken against Lilandra.
Deathbird helped D'Ken capture an aircraft on Earth containing a man and woman. The woman was killed but he man changed his name to Corsair and led the Starjammers.
After D'Ken was killed and her sister Lilandra ascended to the throne, Deathbird helped Earth mutant Apocalypse to save Fabian Cortez.
With Apocalypse's help, she attacked Lilandra to take the throne. However, after Oracle of the Imperial Guard was taken Apocalypse abandoned her.
Deathbird's voice actress was uncredited.
Currently the only animated version of the character.
In the Comics
Her real name is Cal'syee Neramani.
First appeared as a villain to Ms. Marvel.