Alexei Sokolov is a third-year Russian student who most recently attended the London branch of Mythos Academy. He's a Bogatyr warrior who is training to become a member of the Protectorate.
Alexei Sokolov is bodyguard to Gwen Frost when Linus Quinn decides to try and convict Gwen. But when she's declared innocent but still sought out after because she is supposed to end the war between the Reapers and the Pantheon, Alexei becomes her bodyguard and falls hard for his current boyfriend, Oliver Hector.
His father dies in the Second Battle of Chaos at the Library Antiquities and Alexei returns to Russia with Oliver to bury him.