In Season 4, Episode 5 of the animated comedy (titled "Viscous Coupling" ), the character Boris plays a pivotal role in the plot involving his cyborg boss, Barry Dylan . Episode Summary: "Viscous Coupling" Boris s04e05
: Archer attempts to lure Katya away from Barry by using a "viscous coupling" (a mechanical part) as a pretext.
: Boris is seen managing the day-to-day absurdities of Barry’s leadership. In this episode, he notably deals with Barry's obsession with Archer and the fragile state of Barry and Katya's domestic life in Russia.