Iago is the secondary antagonist in Disney's 1992 animated feature film, Aladdin. He is a sarcastic, loud-mouthed parrot that served as Jafar's henchman during the latter's attempt to rule Agrabah. Iago's primary obsessions are riches and fame, which - coupled with his disdain for the Sultan's crackers - motivated his villainous deeds.
Iago's role expanded significantly over the course of the saga, the most notable example being the 1994 direct-to-video sequel The Return of Jafar, in which Iago reformed and joined Aladdin and Jasmine as an anti-hero.
Iago's past is mostly shrouded in mystery. However, it has been hinted at a few times. In "Fowl Weather", he mentions that he once lived in the rainforest, but did not enjoy its unpredictable weather, prompting him to move to the desert. In The Return of Jafar, Jafar mentioned that he purchased Iago in the bazaar at some point in his life. In Disney Princess Enchanted Tales: Follow Your Dreams, Iago claims he was born to be a peacock "but got switched as an egg."
He is part of a royal menagerie in the Arabian city Agrabah, and is named after the villain Iago in the play Othello by William Shakespeare, as evidenced by a mention in the TV series, revealing that he has a twin brother called Othello.
And he is reprised by Alan Tudyk as a tribute for Gilbert Gottfried in the English dub and Toru Okawa in the Japanese dub.