Azazel is the tertiary antagonist of X-Men: First Class. He is a member of the Hellfire Club and has the power of teleportation.
X-Men: First Class
Azazel served Sebastian Shaw in the Hellfire Club. He killed The Man in Black and many other CIA agents with Riptide and Shaw during their assault on the Division X facility. They attempted to recruit the newly-formed X-Men into the Hellfire Club, and was able to bring one of them to their side: Angel Salvadore. His hijacking of a Soviet freighter during the Cuban Missile Crisis nearly led to an all-out nuclear war. After Shaw died, Azazel and the rest of the Hellfire Club joined the Brotherhood of Mutants, under the leadership of Magneto. In X-Men: Days of Future Past, according to Magneto, Azazel and a group of other mutants were killed while being experimented on by Bolivar Trask.