Malik Al-Sayf

Malik is the leader of the Jerusalem Assassin's Bureau. One of the first assassins you meet in Solomon's Temple, he is a harsh, yet wise assassin who envies Altaïr due to his skill and rank in the guild. At first, his devotion to the Creed and Al Mualim is unbreakable and undeniable, yet he slowly gains a respect for Altaïr as he changes on his quest to redeem himself.

Solomon's Temple
Malik along with his brother Kadar and Altaïr, the three were charged with capturing the Templar's Treasure, later found to be the Piece of Eden by Al Mualim. He forewarns Altaïr of his blatant disregard of the Creed. Eventually, Altaïr's stubbornness, headstrong attitude, and arrogance leads to the tragic failure of the mission, costing Malik his left arm and his brother's life. Malik however successfully escaped with the Piece of Eden, and arrived at Masyaf with his arm still attached but bleeding badly, implying it was amputated.

Jerusalem: 1st Visit
When first meeting up with Altaïr in Jerusalem, Malik makes no effort to disguise his newfound hatred of Altaïr. Pointing out even the most subtle of flaws and the small haughtiness of his attitude whenever possible, the two have an unpleasant meeting when discussing the assassination of Talal. Even though the assassination was a success, he criticizes Altaïr for triggering the City Alarm and alerting the citizens of Jerusalem to Talal's demise.

Jerusalem: 2nd Visit
Though his cold attitude toward Altaïr has gone through little to no changes, he expresses a small level of satisfaction when Altaïr asks for advice and begins to respect the Creed more. After the assassination, he notes that Altaïr had performed just as an assassin should -- no more, no less. When Altaïr says, "It seems everything I do troubles you," Malik suggests snidely for him to "Reflect on that. But do so on your way to Masyaf."

Jerusalem: 3rd Visit
When Altaïr visits Malik for the final time in Jerusalem, the easily angered and quick to criticize Malik has changed, speaking to Altaïr as a fellow assassin rather than the failure that had caused the tragedy in Solomon's Temple. After the skirmish at the funeral of Majd Addin, Malik and Altaïr have a quick, heated argument over whether to chase Robert de Sable to Arsuf or return to Masyaf to seek the wisdom of Al Mualim. Altaïr argues that Malik uses the Creed as a shield, not seeing the entire truth but rather what Al Mualim wants him to see, and then suggests that Malik learns more of the Piece of Eden from the people of Jerusalem and Al Mualim while he hunts down Robert. Before their departure, Altaïr apologizes for his failure at Solomon's Temple, which Malik refuses because he feels that the Altaïr who stands before him at that moment is not the same one that had sparked the defeat at Solomon's Temple.

Masyaf
Malik makes his final appearance at Masyaf, aiding Altaïr in fending off the hypnotized assassins with loyal assassins still unaffected by the Piece of Eden. He then leads an assault at the back of the fortress, going on advice given from Altaïr as he personally deals with Al Mualim. His final appearance before the end of the Memory Block was at the revealing of the other locations of the Piece of Eden, where he catches up to Altaïr.

What currently happened afterwards to both Altaïr and Malik is unknown.