The Persian epic, Shahnameh, portrays Afrasiyab as an antagonist figure: an opportunist, an enemy of the Iranians, and a demonic warrior-sorcerer. This stands in stark contrast to heroic figures like Manuchehr, Kay-Kavus, Kay-Khosrow, Siavash, Zal, Rostam, and others. Afrasiyab is the great-grandson of Fereydoun (of Iranian origin) and a character with more negative actions. Afrasiyab is consistently portrayed as seeking victory and dominion over Iran, leading to numerous wars and bloodshed. However, in later Turkish sources, he is reinterpreted as "Alp Er Tunga," a prominent and powerful hero of the Turkish nation and their first Hakan (Khan). This portrayal emphasizes his role in unifying the Turks and positions him as a symbol of courage and martial prowess. Notably, some scholars argue for a possible historical basis for this figure. Some later Turkish sources claim that the Persian poet Ferdowsi misrepresented the figure of Alp Er Tunga, portraying him as the villainous Afrasiyab. This research employs a comparative approach to examine and analyze the character of Afrasiyab/Alp Er Tunga. Persian sources, particularly the Shahnameh, are compared to Turkish sources, including the Dīwān Lughāt al-Turk and Kutadgu Bilig (representing established sources) and Hakan of Turan, Alp Er Tunga (as an example of later sources). The analysis focuses on the full spectrum of this character's behavior patterns and the degree to which the mythical Afrasiyab has been adapted into the figure of Alp Er Tunga. The research findings reveal two distinct representations of the figure: a mythological one and a possibly historical one.