Bratva mechanic

An unnamed man (credited as "The Mechanic") is a member of the Solntsevskaya Bratva.

Season 1
In "Lone Gunman", When Oliver came asking for Alexi Leonov, he believed him to be a enemy, and pointed a gun at him which resulted in Oliver almost breaking his hand. Oliver showed Alexi along with the man his Bratva star tattooed, revealing he was a Bratva captain, and the man and Alexi apologized for disrespecting him.

In "Vertigo",