Sayyid Ali Hosseini Khamenei is the incumbent Supreme Leader of Iran who appeared in Season Seventeen episode "Ginger Cow".
Upon discovery of a red haired cow, the leaders of Islam, Christianity and Judaism met to discuss the terms of an Armageddon-style war. Ali Khamenei suggested that if chemical weapons could not be used, then nuclear weapons should be ruled out as well. Later, he agrees on the use of non-ballistic nuclear weapons.
Ali Khamenei wears black and grey robes. He has a thick beard and wears spectacles. He also wears a turban and is visibly aged.