Nikolai was the head of the KGB and somewhat of an enemy of ISIS. Interestingly enough he has had a long (40 years to be exact) and tumultuous romantic relationship with the head of ISIS, Malory Archer and may be Sterling Archer's biological father. He has been behind numerous plots against ISIS, such as planting the mole Crenshaw; hiring Elke Hubsch, Ute, and Mannfred to assassinate UN worker Torvald Utne; and later hiring Mannfred and Ute to plant a mind control chip in Sterling's brain. Despite these apparent villainous behaviors, Nikolai has a surprisingly friendly relationship with Mallory. They frequently communicated through a large video screen link in their offices. Nikolai also seems to want to resume his relationship with Mallory, once using a sex tape to try and blackmail her into getting back together with him in Russia. He also seems to want to very much be Sterling's father, though he admits he would gladly kill Sterling if it turns out he was not. Nikolai captures Sterling when he came searching for his father's identity, and Mallory hired Barry Dylan to free him. The KGB capture Barry Dylan and convert him in a cyborg agent for themselves. Barry however has his own agenda in getting revenge on Archer and becoming head of the KGB in Nikolai's place. Nikolai decides to defect to the United States and gets protection from ISIS. He bonds with Archer during this time, but is ultimately killed by Barry in an explosion. Nikolai left a message for Sterling on a videotape, though it is unknown what it was or if it survived the explosion that killed Nikolai.