Alexi Leonov

Alexi Leonov was a member of the Russian mob, Solntsevskaya Bratva posing as a mechanic in Starling City.

Season 1
In "Lone Gunmen", Oliver Queen, comes looking for Alexi Leonov to help him identify Deadshot via his trademark bullets. At first, Alexi thought him to be an enemy, but Oliver proves his credence by showing him his tattoo and explaining that he is Bratva. Alexi agrees to look into the bullets and discover the identify of the user. He warns Oliver, stating, he will send a thug to kill him and his family if he is not who he says he is. Later, Alexi calls Oliver revealing the identity of the marksman to be Floyd Lawton.

In "Vertigo", Oliver ask him to arrange a meeting with The Count so that he might buy the drug Vertigo (drug). Alexi reveals he has learned Oliver's identity, and his surprise that an American has gained such a high rank in the Bratva. He agrees to try to arrange a meeting if Oliver will do something for him. He has The Mechanic bring in a man who Alexi said did "something I told him not to do" and asks Oliver to kill him. Oliver uses a move Yao Fei once used on him that causes the victim to appear to be dead. Tricked by the maneuver, later Alexi does arrange the meeting where Oliver attempts to buy vertigo from The Count, but a police raid interrupts the deal and Alexi and the mechanic flee.

In "Suicide Squad ", Oliver asks Leonov to uncover intel on Slade Wilson. As usual Leonov asked a favor in return but this time Oliver does not comply, taking out and injuring his men in order to persuade Leonov to do this favor. Leonov obliges but informs Oliver he is no longer associated with the Bratva. Later on Oliver finds Leonov, dead, at the hands of Slade.

Seaon 2

 * "Suicide Squad"

Alexi Leonov