Alexei Volkoff (Russian: Алексей Волков) is the alias and alter ego of Hartley Winterbottom (codename Agent X), a fictional character on the television series Chuck. Volkoff is the head of Volkoff Industries. For the first six episodes of the fourth season, he was an unseen character, directing his operatives from behind the scenes. He first appeared in the seventh episode, "Chuck Versus the First Fight". For the first twenty-one episodes of the season, Volkoff is presented as the character's actual identity. "Chuck Versus Agent X", however, reveals that Volkoff is actually a cover, which, following a botched Intersect upload, Winterbottom unknowingly adopted as his true identity. Volkoff serves as the main antagonist for the first half of season four and tragic character in the second hal