Who is the protagonist of Assassin's Creed Origins, set in ancient Egypt?

Bayek of Siwa is the protagonist of Assassin's Creed Origins, set in ancient Egypt.

Bayek is a Medjay, a protector and lawkeeper from the Siwa Oasis. The story follows his search for those responsible for a personal tragedy and his growing involvement in a conflict that develops into the origins of the Hidden Ones, the precursor to the Assassin Brotherhood.

His wife, Aya of Alexandria, is also a major playable character and an important participant in the political events of the game. Their relationship and shared goals help connect local events in Egypt with the wider Roman and Ptolemaic power struggle.

Origins takes place during the first century BCE, during the reign of Ptolemy XIII and the arrival of Julius Caesar in Egypt. Bayek is the central protagonist, while Aya is a major co-lead rather than the sole answer.