Sonya Lebedenko was a high-ranking member of the organization that Michael Westen agrees to take down for the CIA in return for clearing his friends and his mother of all charges in Season Seven. She is portrayed by Alona Tal.
Sonya was a double agent in the GRU who works for James Kendrick's network. During her active period as a double agent, she sold a lot of secret information. Her information causes many deaths in the GRU and gives Sonya an enormous reputation in the NSA. When a group of hackers learned of her existence in the GRU, they gave the information to Colonel Oksana, a vicious and high-ranking official in the GRU. Oksana tortures Sonya in a secret Russian black site for a long time.