Honor Gabriel Riqueti, comte de Mirabeau (Assassin's Creed Unity)
You can call him Mirabeau for short. Best known as one of the leaders of the French Revolution and a hero of the people, he is also well known for his scandalous love affairs, which usually involved him sleeping with a superiors wives.
Eseosa (Assassins Creed Initiates)
Adewales grandson and author of his own detailed Codex, Eseosa follows in the footsteps of his beloved Gran p and helps kick off the Haitian Revolution. This coincides with the occurrence of the French Revolution, and not just chronologically - in terms of chaos, drama and betrayal, Eseosas revolution matches up more than he ever hoped.
Nikolai Andreievich Orelov (Assassin's Creed: The Fall)
A member of the Russian Brotherhood, Nikolai deals with more crap than most men could rightly handle. Though hes initially invested in the Assassin cause and assists with the bringing about of the Russian Revolution, a series of unpleasant events shake his resolve, and he eventually flees to America with his family (which doesnt end well).
Shao Jun (Assassin's Creed Embers, Assassin's Creed Chronicles: China)
Once the Chinese Emperor Zhengdes favorite concubine, Shao Jun was rescued by the Assassins soon after his death, when the resulting power struggle put her life in danger. She devoted herself to the Assassins thereafter, even traveling to Italy to seek the counsel of Ezio Auditore when the Chinese Brotherhood fell on hard times. Now shes the star of the AC Unity DLC, Assassin's Creed Chronicles: China, so expect to see more from her yet.
Gavin Banks (Assassins Creed Initiates)
If theres a guy who did not sign up for this, its Gavin. A close friend of Bill Miles and one of the mans most trusted associates, he is decreed Mentor of the Assassin Order when Bill goes into hiding, and isnt too excited about it. He governs the Order and his own elite team from the ship, Altair II.
Susan Drayton (Assassins Creed Initiates)
Gavins first recruit and a radical environmentalist, Susan met the Mentor while trying to steal the Altair II to chase Japanese whaling vessels. She eventually agrees to act as his captain, which is almost as good as saving the whales.
Eric Cooper (Assassins Creed Initiates)
Nothing says promising Assassin like a revenge killing spree. The victim of a hate crime that killed his partner, Eric systematically hunted down all the people responsible, catching Gavins attention. Once his mission is complete, Eric is invited aboard the Altair II to serve as first mate.
Emmanuel Manny Barraza (Assassins Creed Initiates)
One of the most ironic Assassins to ever live, Manny is a weapons expert and complete pacifist. Swearing to never kill again after his time in the armed forces, he still arms his willing comrades to the teeth.
Emmett Leary (Assassins Creed Initiates)
Former Abstergo employee, master programmer, and a deeply paranoid fellow, Emmett jumps at the chance to run away with Gavins crew and away from all the people he thinks are after him. Turns out, he got away right before Abstergo agents shook down his home. Is it paranoid if someone really is watching you?
Stephanie Chiu (Assassins Creed Initiates)
The medic in residence on Altair II, Stephanie escaped a life carefully controlled by her Abstergo-employed parents, hopped off the grid and joined the Assassin Order. When she isnt bandaging extensive stab wounds, she enjoys researching network science and growing marijuana. For medical purposes, of course.