Alexi Leonov

Alexi Leonov is a member of the Russian mob, Solntsevskaya Bratva posing as a mechanic.

Biography
When Oliver Queen came looking for Alexi Leonov, at first he thought him to be an enemy, but Oliver soon showed him a tattoo that signified him being a high-ranking member of the Russian mob, Solntsevskaya Bratva, and he further explained that he was a captain. Alexi proceeded to ask him what he needed, and Oliver described the type of bullet Deadshot used on his victims. Alexi agreed to look in to it and see who the user was, but if Oliver was not who he said he was, he would send a thug to kill him.

Later, Alexi called Oliver to tell him that the identity of the marksman was Floyd Lawton, known to Interpol as "Deadshot".