In Assassin's Creed Rogue, which former Assassin becomes a Templar?

In Assassin's Creed Rogue, Shay Patrick Cormac is the former Assassin who becomes a Templar.

Shay begins the game as an Assassin operating in the North Atlantic during the eighteenth century. After a disastrous mission and a growing disagreement with the Brotherhood's leadership, he breaks with the Assassins. He later joins the Templars and hunts his former allies, making Rogue unusual within the series because its playable protagonist serves the opposing faction.

Shay's change of allegiance is the central dramatic premise rather than a minor plot detail. The game explores the Assassin-Templar conflict from a Templar perspective and shows how Shay interprets the Assassins' actions as dangerous. His story also connects to characters and events from Assassin's Creed III and Assassin's Creed Unity.

Rogue was released in 2014 for PlayStation 3 and Xbox 360, with later versions following. Haytham Kenway is also associated with the Templars, but he is a different character and is not the protagonist who defects in Rogue.