He is a master of disguise and has used the services of plastic surgeon Dr. Hans Koehler to alter his appearance.
Moreau was manipulated by presidential advisor Anna McMahon (Jennifer Ferrin) into thinking he was acting for his cause. In reality, he was a pawn in a conspiracy called the "Princip Initiative," which was a plot by President Diaz to assassinate his own wife, the First Lady. 11. Bastien Moreau (1)
In the episode "Bastien Moreau" (6.11), Raymond Reddington is on death row and scheduled for lethal injection. While Red is seconds away from death, Harold Cooper (Harry Lennix) uses intel regarding Moreau’s current activities to pressure President Robert Diaz into granting a stay of execution. He is a master of disguise and has