Boris Karpov is a head of Alpha Unit of the FSB. He was the leader of Russian President's Guard in Reykjavik Summit. He confronted CIA agent Jamie Hull, because Hull always called him as "Boris". Later, he killed Hull before Hull could kill Bourne.
- Jason Bourne saved his life last time they met each other.
- He spent winter in Siberia as a clandestine operator in Sino-Soviet conflicts.