Sergei Mikhailov is a character in Tomb Raider Chronicles.
He is a corrupt Russian mafia boss, who has bought Admiral Yarofev's submarine with its power and services. Mikhailov's goal is to find the Spear of Destiny and use it to his evil purposes.
His desire to obtain the artifact is, in the end, what becomes his demise. As Lara returns to the admiral's submarine with the spear, which she has taken from another, sunken submarine, Mikhailov is waiting for her with his goons. He takes the spear from Lara, despite her warnings. The powers of the Spear of Destiny overwhelm him and he is destroyed.